X-Men: Days of Future Past#Critical response

In a dystopian 2023, Sentinel robots hunt and kill mutants, as well as humans who either possess the genetic potential to have mutant offspring or try to protect them. In Moscow, they attack X-Men survivors Kitty Pryde, Colossus, Blink, Warpath, Bishop, Iceman, and Sunspot. The mutants sacrifice themselves to buy Kitty enough time to send Bishop's consciousness a few days into the past to warn the others of the coming attack and ensure their survival.

Having averted the attack, the group retreats to a remote Chinese temple and are joined by Storm, Logan, Charles Xavier, and Erik Lehnsherr. Xavier explains that the Sentinels were originally conceived by Bolivar Trask, a weapons designer whom Raven Darkhölme assassinated in 1973. In response, the government captured Raven and experimented on her, using her DNA to create Sentinels capable of adapting to any mutant power. Xavier plans to go back in time to 1973 and prevent Trask's assassination in the hopes of altering the future. However, upon learning that time-traveling too far would kill Xavier, Logan volunteers instead, as his regenerative abilities would allow him to survive.

Awakening in 1973, Logan goes to the X-Mansion, learning from Hank McCoy that the school has been closed for years due to the Vietnam War, and Lehnsherr has been imprisoned for assassinating JFK. A young, broken Xavier has turned to alcoholism and frequently uses a serum that allows him to walk, but at the cost of his telepathic abilities. Hoping to reunite with Raven, Xavier agrees to help Logan. They recruit Peter Maximoff, a mutant with superhuman speeds, and break Lehnsherr out of The Pentagon, learning that he was in fact attempting to save JFK, who was also a mutant.

Raven discovers Trask has been experimenting on mutants and plots to assassinate him at the Paris Peace Accords, but Xavier, McCoy, and Logan foil her attempt. Lehnsherr attempts to kill Raven, believing this would change the future, so McCoy fights him, allowing Raven to escape but publicly exposing them as mutants. Trask takes advantage of this and convinces President Nixon to authorize the Sentinel program.

Lehnsherr retrieves his helmet and secretly takes control of Trask's Sentinel prototypes by infusing them with steel. Returning to the X-Mansion, Xavier abandons the serum and, by reading Logan's mind, communicates with his future self, who inspires him to protect the future between mutants and humans. After Xavier uses his mutant-tracking computer Cerebro to find Raven, he, McCoy, and Logan travel to Washington, D.C. to stop her from assassinating Trask.

At a ceremony where Nixon unveils the Sentinels, the three search for Raven. Lehnsherr appears, activates the Sentinels, and barricades the White House by lifting the RFK Stadium over it. During the battle, Lehnsherr impales Logan with a rebar and throws him into the Potomac River. Nixon, Trask, and a disguised Raven retreat to the White House Bunker. However, Lehnsherr rips the bunker out of the building to kill everyone inside. In 2023, the X-Men make their last stand as an onslaught of Sentinels attacks the temple, with most of the mutants perishing while trying to buy more time. In 1973, Raven reveals herself and subdues Lehnsherr with a plastic gun, saving Nixon and his cabinet. Before she can kill Trask, Xavier telepathically convinces her to spare him, leading the public to realize that a mutant saved the President. As a result, the Sentinel program is decommissioned, altering the timeline and erasing the dark future of 2023 from history. The mutants in the past depart separately; Trask is later arrested for selling military secrets to foreign governments.

Logan reawakens in 2023 at the X-Mansion to find that Xavier's school is thriving and the X-Men are all alive, including Rogue, Jean Grey, and Scott Summers. Logan asks Xavier for information about modern history from 1973 to the present. Upon realizing that the Logan from the original timeline has returned, Xavier assents. Back in 1973, Logan is rescued by Raven, having disguised herself as Major William Stryker.

In a post-credits scene set in ancient Egypt, a crowd chants to En Sabah Nur, who telekinetically elevates rocks to build pyramids as his Four Horsemen observe from afar.

{{Tall image|X-Men DOFP cast.jpg|150|590|The cast of X-Men: Days of Future Past promoting the film at the 2013 San Diego Comic-Con. From top to bottom: Jackman, McAvoy, Fassbender, Lawrence, Berry, Hoult, Paquin, Page, Dinklage, McKellen, Stewart, Ashmore, Sy, and Peters.}}

• Hugh Jackman as Logan / Wolverine:
  A mutant with accelerated healing, heightened animal-like senses, and—in 1973—retractable bone claws; in the future, his skeleton and claws are laced with adamantium in his body, making him virtually invulnerable. His healing factor also slows his aging, allowing him to live above the lifespan of an ordinary human. Jackman noted how Wolverine driving the plot in spite of his gruff personality made for interesting story choices, as "if you want someone to go back to take someone's head off, fantastic, but he's really got to go back and almost act in parts as inspiration, as mentor, as guide, because he can't do it all on his own, which is always his preferred method".{{cite web|url=https://collider.com/hugh-jackman-x-men-days-of-future-past-interview/|title=Hugh Jackman Talks Reuniting with Bryan Singer, Battling Sentinels, How Long He'll Play Wolverine, and More on the Set of X-Men: Days of Future Past|date=February 19, 2014|first=Steve|last=Weintraub|work=Collider|access-date=May 29, 2014|archive-date=May 11, 2014|archive-url=https://web.archive.org/web/20140511052453/http://collider.com/hugh-jackman-x-men-days-of-future-past-interview|url-status=live}}
• James McAvoy / Patrick Stewart as Charles Xavier / Professor X:
  A mutant pacifist and the world's most powerful telepath. He is also the founder of Xavier's School for Gifted Youngsters, and the leader of the X-Men. Singer described the younger Xavier as "a very different beast from First Class{{'}}s feckless playboy. He's a wounded animal, bearded, long-haired, filled with rage at the way the world has treated him".{{cite web|url=https://www.empireonline.com/movies/features/x-men-days-future-past-trailer-breakdown/|title=Bay City Roller - X-Men: Days Of Future Past Trailer Breakdown|date=October 29, 2013|access-date=October 30, 2013|archive-date=February 3, 2016|archive-url=https://web.archive.org/web/20160203172308/http://www.empireonline.com/movies/features/x-men-days-future-past-trailer-breakdown/|url-status=live}} Kinberg said the film was intended to be the story of the younger Xavier beginning to "become the Professor Xavier we know" as Wolverine mentored him.{{cite web |url=https://www.denofgeek.com/movies/x-men-days-of-future-past/30696/simon-kinberg-interview-x-men-days-of-future-past |title=Simon Kinberg interview: X-Men: Days Of Future Past |date=May 28, 2014 |website=Den of Geek |publisher=Dennis Publishing Limited |access-date=May 29, 2014 |archive-date=May 31, 2014 |archive-url=https://web.archive.org/web/20140531011624/http://www.denofgeek.com/movies/x-men-days-of-future-past/30696/simon-kinberg-interview-x-men-days-of-future-past |url-status=live }}
• Michael Fassbender / Ian McKellen as Erik Lehnsherr / Magneto:
  A powerful mutant who can manipulate magnetic fields. While he dissents with Xavier due to a wish to prove mutant-kind's superiority, they revert to being allies as the older Erik helps the X-Men battle against Sentinels in the future.
• Jennifer Lawrence as Raven / Mystique:
  A mutant with shapeshifting ability, and also Xavier's childhood friend and adopted sister. Singer said Mystique "is less innocent, evolved, getting closer to where Mystique was in X2 (2003)".{{cite web |url=https://collider.com/x-men-days-of-future-past-cast-interview/ |title=Comic-Con: X-Men: Days of Future Past Interview Highlights |last=Trumbore |first=Dave |website=Collider |access-date=July 19, 2013 |archive-date=July 23, 2013 |archive-url=https://web.archive.org/web/20130723210313/http://collider.com/x-men-days-of-future-past-cast-interview |url-status=live }} Lawrence had suffered skin irritations from the full body make-up used in First Class, and the process was changed so from the neck down it would be a bodysuit,{{cite web|url=http://www.eonline.com/news/391827/jennifer-lawrence-i-m-sinking-into-a-bit-of-depression|title=Jennifer Lawrence: "I'm Sinking Into a Bit of Depression"|work=E! News|first=Marc|last=Malkin|date=February 26, 2013|access-date=January 30, 2014|archive-date=March 5, 2013|archive-url=https://web.archive.org/web/20130305160335/http://www.eonline.com/news/391827/jennifer-lawrence-i-m-sinking-into-a-bit-of-depression|url-status=live}} whose zipper was digitally removed in post-production. As a result, the make-up process was reduced from eight hours to three.{{cite web|url=https://www.yahoo.com/movies/blogs/yahoo-movies/jennifer-lawrence-easier-x-men-costume-might-lead-130252035.html|title=How Jennifer Lawrence's Easier X-Men Costume Might Lead to Mystique Spinoff|work=Yahoo! Movies|first=Kara |last=Warner|date=April 22, 2014|access-date=April 30, 2014}} The make-up team at Legacy Effects sculpted Mystique's scales digitally, making them shorter in size and placed in a way that they would accentuate Lawrence's face.
• Halle Berry as Storm:
  A mutant who can manipulate weather and is one of the most battle-tested and powerful X-Men. Asked if her pregnancy affected her role, Berry replied, "I wasn't in as much as I was meant to be. My ever-growing belly was posing a constant challenge! What I could do was getting more limited so the role that I play is so different from what it could have been, due to my surprise pregnancy".{{cite web|url=http://x-menfilms.com/2013/08/02/halle-berry-theres-something-very-revealing-about-storm-in-xmen-dofp/|title=Halle Berry: Revealing and shocking Storm developments in 'Days of Future Past|date=August 2, 2013|access-date=August 4, 2013|archive-date=March 28, 2014|archive-url=https://web.archive.org/web/20140328225601/http://x-menfilms.com/2013/08/02/halle-berry-theres-something-very-revealing-about-storm-in-xmen-dofp/|url-status=dead}} According to Kinberg, Berry had another scene in the film that was cut because of Berry's limited schedule.{{cite web |url=https://collider.com/x-men-days-of-future-past-set-visit/ |title=X-Men: Days of Future Past Set Visit: 90 Thing to Know About X-Men: Days of Future Past |first=Steve |last=Weintruab |website=Collider |date=February 19, 2014 |access-date=June 23, 2014 |archive-date=September 1, 2016 |archive-url=https://web.archive.org/web/20160901123724/http://collider.com/x-men-days-of-future-past-set-visit/ |url-status=live }}
• Anna Paquin as Rogue:
  A mutant who could absorb the life force and mutant abilities of anyone she touches until taking a cure in The Last Stand. Kinberg wrote a shorter part for Paquin than initially planned because she had little time to be on set. During post-production, Paquin's role was reduced to a cameo after most of her scenes were cut; these scenes were later restored on an alternate version of the film, which was released to home media.{{cite web |url=https://www.empireonline.com/movies/news/anna-paquin-rogue-cut-x-men-days-future-past/ |title=Anna Paquin's Rogue Cut Out Of X-Men: Days Of Future Past |website=Empireonline.com |first=Ali |last=Plumb |date=December 22, 2013 |access-date=May 1, 2015 |archive-date=February 3, 2016 |archive-url=https://web.archive.org/web/20160203172308/http://www.empireonline.com/movies/news/anna-paquin-rogue-cut-x-men-days-future-past/ |url-status=live }}{{cite web |url=https://www.empireonline.com/news/story.asp?NID=39967 |title=Bryan Singer On Rogue Being Cut From X-Men: Days of Future Past |website=Empireonline.com |first=Ali |last=Plumb |date=January 30, 2014 |access-date=January 30, 2014 |archive-date=January 31, 2014 |archive-url=https://web.archive.org/web/20140131062957/http://www.empireonline.com/news/story.asp?NID=39967 |url-status=live }}{{cite web|url=https://www.comingsoon.net/movies/news/117225-anna-paquins-rogue-will-be-present-for-x-men-days-of-future-past|title=Anna Paquin's Rogue Will be Present for X-Men: Days of Future Past|date=April 16, 2014|access-date=April 16, 2014|archive-date=March 25, 2015|archive-url=https://web.archive.org/web/20150325154621/http://www.comingsoon.net/movies/news/117225-anna-paquins-rogue-will-be-present-for-x-men-days-of-future-past|url-status=live}}{{cite web|url=https://variety.com/2014/film/news/fox-to-add-anna-paquin-back-to-x-men-days-of-future-past-1201314028/|title=Fox to Add Anna Paquin Back to X-Men: Days of Future Past|date=September 25, 2014|access-date=March 14, 2016|archive-date=April 4, 2016|archive-url=https://web.archive.org/web/20160404023833/http://variety.com/2014/film/news/fox-to-add-anna-paquin-back-to-x-men-days-of-future-past-1201314028/|url-status=live}} According to Kinberg, Rogue was to be rescued by the future Magneto and Xavier to provide the elder characters a mission, "something like Unforgiven (1992)". Eventually, the producers felt it was a subplot that did "not service the main story", and reshot scenes to replace them.{{cite web |url=https://uk.yahoo.com/movies/x-men-writer-on-apocalypse-plot-98479448361.html |title=X-Men Writer On Apocalypse Plot Twists, Quicksilver, Scarlet Witch And Much More (Exclusive) |work=Yahoo! UK |date=September 26, 2014 |access-date=September 29, 2014 |archive-date=March 24, 2015 |archive-url=https://web.archive.org/web/20150324055946/https://uk.yahoo.com/movies/x-men-writer-on-apocalypse-plot-98479448361.html |url-status=live }} However, she was still featured in the film's various promotional materials.{{cite web |first=Adam B. |last=Vary |url=https://www.buzzfeed.com/adambvary/anna-paquin-in-x-men-days-of-future-past-after-all |title=Anna Paquin Will Be In "X-Men: Days Of Future Past" After All |website=Buzzfeed.com |date=April 16, 2014 |access-date=May 20, 2014 |archive-date=April 30, 2014 |archive-url=https://web.archive.org/web/20140430134820/http://www.buzzfeed.com/adambvary/anna-paquin-in-x-men-days-of-future-past-after-all |url-status=live }}{{cite web |url=https://www.empireonline.com/news/story.asp?NID=40775 |title=Anna Paquin Will Appear In X-Men: Days Of Future Past |, Movie News |, Empire |website=Empireonline.com |access-date=May 20, 2014 |archive-date=April 2, 2015 |archive-url=https://web.archive.org/web/20150402150301/http://www.empireonline.com/news/story.asp?NID=40775 |url-status=dead }} Paquin later stated that she still had fun making the film and did not mind that the majority of her scenes had been cut from it.{{cite web |first=Brent |last=McKnight |url=https://www.cinemablend.com/new/Why-Anna-Paquin-Didn-t-Mind-Being-Cut-From-X-Men-Days-Future-Past-96517.html |title=Why Anna Paquin Didn't Mind Being Cut From X-Men: Days Of Future Past |website=cinemablend.com |date=November 25, 2015 |access-date=November 30, 2015 |archive-date=June 10, 2020 |archive-url=https://web.archive.org/web/20200610082856/https://www.cinemablend.com/new/Why-Anna-Paquin-Didn-t-Mind-Being-Cut-From-X-Men-Days-Future-Past-96517.html |url-status=live }}{{cite web |first=Terri |last=Schwartz |url=https://www.ign.com/articles/2015/11/27/x-men-anna-paquin-is-game-to-come-back-for-more |title=X-MEN: ANNA PAQUIN IS GAME TO COME BACK FOR MORE |website=ign.com |date=November 27, 2015 |access-date=November 30, 2015 |archive-date=November 30, 2015 |archive-url=https://web.archive.org/web/20151130040210/http://www.ign.com/articles/2015/11/27/x-men-anna-paquin-is-game-to-come-back-for-more |url-status=live }}
• Elliot Page{{efn|name=Elliot}} as Kitty Pryde:
  A mutant who can pass through solid objects. As the youngest member of the X-Men, she plays an important role in their fight for survival.{{cite web |url=http://www.x-menmovies.com/#!/character/kitty |title=Ellen Page as Kitty |access-date=February 21, 2014 |archive-date=May 9, 2016 |archive-url=https://web.archive.org/web/20160509210213/http://www.x-menmovies.com/#!/character/kitty |url-status=dead }} Singer described Pryde as the prime facilitator and that Pryde's phasing ability enables time-travel to happen.{{cite web|url=https://www.empireonline.com/news/story.asp?NID=38315|title=Exclusive: Bryan Singer Talks X-Men: Days of Future Past|date=July 31, 2013|access-date=August 4, 2013|first=Ali|last=Plumb|work=Empire|archive-date=August 24, 2013|archive-url=https://web.archive.org/web/20130824002846/http://www.empireonline.com/news/story.asp?NID=38315|url-status=dead}} Kinberg, when asked why Pryde is not the time-traveler in the film adaptation of the comic-book story, said, "[If] we tried to follow the original and use Kitty, we had a problem because [Elliot] is 25 years old and [he'd] be -20 in the First Class era".
• Peter Dinklage as Dr. Bolivar Trask:
  A military scientist and the head of Trask Industries who creates a range of robots called Sentinels, designed to find and destroy mutants. Dinklage said Trask "sees what he's doing as a good thing—[his ambition is] definitely blind and he's quite arrogant. He has striven all his life for a certain respect and attention". He also said Trask is opposed by Richard Nixon.{{cite web|url=http://www.superherohype.com/news/articles/179497-peter-dinklage-talks-boliver-trask-in-x-men-days-of-future-past|title=Peter Dinklage Talks Bolivar Trask in X-Men: Days of Future Past|first=Spencer|last=Perry|date=October 1, 2013|access-date=October 2, 2013|archive-date=January 5, 2014|archive-url=https://web.archive.org/web/20140105100327/http://www.superherohype.com/news/articles/179497-peter-dinklage-talks-boliver-trask-in-x-men-days-of-future-past|url-status=live}} Singer said he is a fan of Dinklage and of the television series Game of Thrones (2011-2019) in which Dinklage stars as Tyrion Lannister, which inspired him to cast Dinklage. The actor, who has achondroplasia, a form of dwarfism, said he was attracted to Trask because the character was not written as a dwarf or defined as such.{{Cite web |last=Palathingal |first=George |date=2014-05-02 |title=Game of Thrones' Peter Dinklage has the X-Men factor |url=https://www.smh.com.au/entertainment/movies/game-of-thrones-peter-dinklage-has-the-xmen-factor-20140501-37ir2.html |access-date=2025-03-21 |website=The Sydney Morning Herald |language=en |archive-date=June 22, 2015 |archive-url=https://web.archive.org/web/20150622095905/http://www.smh.com.au/entertainment/movies/game-of-thrones-peter-dinklage-has-the-xmen-factor-20140501-37ir2.html |url-status=live }}
• Nicholas Hoult as Hank / Beast:
  A mutant with leonine attributes, super-strength, agility, reflexes and enhanced speed. Hoult plays the character in scenes set in 1973 while Kelsey Grammer makes an uncredited cameo appearance as Beast in the future setting.{{cite web|date=October 28, 2013|title=Classic X-Men set for sequel cameo|url=http://uk.movies.yahoo.com/kelsey-grammer-cameo-planned-x-men-101200099.html|url-status=dead|archive-url=https://web.archive.org/web/20140323092422/http://uk.movies.yahoo.com/kelsey-grammer-cameo-planned-x-men-101200099.html|archive-date=March 23, 2014|access-date=March 20, 2014}} The cameo was added because the writers felt Hoult's Beast was "such a sweet, young character" that audiences would want to learn he survived.{{cite web|last=Plumb|first=Ali|title=X-Men: Days Of Future Past's Secrets Explained|url=https://www.empireonline.com/features/days-of-future-past-secrets-explained/|access-date=February 8, 2015|work=Empire|archive-date=May 19, 2015|archive-url=https://web.archive.org/web/20150519151555/http://www.empireonline.com/features/days-of-future-past-secrets-explained|url-status=live}} Once Grammer learned of this opportunity to return as Beast, a character he had enjoyed playing in The Last Stand, he called Singer asking to get involved, and was flown from New York in secret to avoid drawing attention.{{cite web|last=Wigler|first=Josh|date=June 23, 2014|title=How X-Men: Days Of Future Past Made One Of Its Top-Secret Cameos Possible|url=http://www.mtv.com/news/1848949/x-men-days-of-future-past-beast-cameo-kelsey-grammer/|archive-url=https://web.archive.org/web/20140625174404/http://www.mtv.com/news/1848949/x-men-days-of-future-past-beast-cameo-kelsey-grammer/|url-status=dead|archive-date=June 25, 2014|access-date=February 8, 2015|work=MTV.com}}
• Shawn Ashmore as Bobby / Iceman:
  A mutant who can create and manipulate ice. Ashmore said about his role, "In the first X-Men I had to make a rose for Rogue but that was the extent of the character, so it's cool to see over these four movies going from that to X2—where you sort of see him do an ice wall—and in X3 he finally gets to battle, and in Days of Future Past we're soldiers".{{cite web |url=https://www.thewrap.com/shawn-ashmore-x-men-days-of-future-past/ |title=X-Men Days of Future Past Star Shawn Ashmore: I've Been Waiting to See Bobby Do His Thing |date=May 13, 2014 |access-date=June 22, 2014 |archive-date=July 16, 2014 |archive-url=https://web.archive.org/web/20140716204435/http://www.thewrap.com/shawn-ashmore-x-men-days-of-future-past/ |url-status=dead }}
• Omar Sy as Bishop:
  A mutant who can absorb energy and redirect it in kinetic blasts. Singer said Bishop, along with Warpath, Sunspot and Blink, are not fresh recruits. He said, "they're more refugees that are living day to day in this hideously ruined world. They don't have much hope in the future. They're on the run and they join forces with the remaining X-Men to try to do this one last attempt at fixing the world".{{cite web|url=https://www.empireonline.com/features/x-men-days-of-future-past-trailer-breakdown/p8 |title=The New Mutants|access-date=November 2, 2013}}
• Evan Peters as Peter / Quicksilver:
  A mutant who can move, speak and think at supersonic speeds. Peters described Quicksilver as "very fast, he talks quick, he moves quick. Everything else is very slow compared to him, it's like he's always at the ATM waiting for the bastard in front of him to finish".{{cite web|url=http://www.totalfilm.com/features/x-men-days-of-future-past-10-things-we-learned-at-comic-con-2013/quicksilver-will-be-very-very-fast|title=X-Men: Days of Future Past: 10 Things We Learned at Comic-Con 2013|date=July 21, 2013|access-date=September 1, 2013|first=Matt|last=Maytum|archive-date=August 3, 2014|archive-url=https://web.archive.org/web/20140803233041/http://www.totalfilm.com/features/x-men-days-of-future-past-10-things-we-learned-at-comic-con-2013/quicksilver-will-be-very-very-fast|url-status=live}}
• Josh Helman as Maj. Bill Stryker:
  A military officer who hates mutants. Helman was originally chosen to play a younger version of Juggernaut before that character was removed from the script.{{cite web|url=https://uk.ign.com/articles/2014/03/13/turns-out-juggernaut-was-originally-in-x-men-days-of-future-past|title=Turns out Juggernaut Was Originally in X-Men: Days of Future Past|date=March 13, 2014|access-date=May 26, 2014|last=Collura|first=Scott|work=IGN}} Brian Cox, who portrayed adult Stryker in X2, appears in archive footage.
• Daniel Cudmore as Colossus:
  A mutant who can transform his body into organic steel, which grants him superhuman strength, stamina, and durability while in that form. Cudmore was asked whether he trained for his role, he replied, "I didn't have a ton of time to get film ready for this. A trainer friend of mine from Vancouver put together a quick little workout program for me. Since the role was for Colossus, I was aiming to bulk up a bit and get stronger. I ended up eating a lot more. Because of how much I was eating, I had to eat every 2-3 hours to keep my calories up".{{cite web |url=http://www.bodybuilding.com/fun/x-men-days-of-future-past-interview-colossus-daniel-cudmore.html |title=X-Men: Days of Future Past Interview with Daniel Cudmore |first=Stephanie |last=Lee |date=May 30, 2014 |access-date=June 22, 2014 |archive-date=July 3, 2014 |archive-url=https://web.archive.org/web/20140703195957/http://www.bodybuilding.com/fun/x-men-days-of-future-past-interview-colossus-daniel-cudmore.html |url-status=live }}
• Fan Bingbing as Blink:
  A mutant who can create portals to teleport. Fan said the film was the first of a five X-Men movie contract she signed with 20th Century Fox.{{cite web |url=http://www.thestar.com.my/Lifestyle/Entertainment/Movies/News/2014/05/22/Fan-Bingbing-excited-to-be-part-of-the-XMen-movies/ |title=Fan Bingbing excited to be part of the X-Men movies - Movies |, The Star Online |work=Thestar.com.my |access-date=May 22, 2014 |archive-date=May 23, 2014 |archive-url=https://web.archive.org/web/20140523065914/http://www.thestar.com.my/Lifestyle/Entertainment/Movies/News/2014/05/22/Fan-Bingbing-excited-to-be-part-of-the-XMen-movies/ |url-status=dead }}
• Adan Canto as Sunspot:
  A mutant with the ability to project solar energy and create flames while also possessing solar-powered strength and flight.{{cite web|url=https://www.empireonline.com/xmen/sunspot.asp|title=Empire X-Men: Days Of Future Past Exclusive - Sunspot Cover|access-date=January 30, 2014|archive-date=April 11, 2014|archive-url=https://web.archive.org/web/20140411141323/http://www.empireonline.com/xmen/sunspot.asp|url-status=live}} Canto had read the X-Men comics as a child, and after he was cast, went back to research the comics to further understand Sunspot's character.{{cite web |url=http://www.superherohype.com/features/302671-interview-adan-canto-talks-sunspot-in-x-men-days-of-future-past#/slide/1 |title=Interview: Adan Canto Talks Sunspot in X-Men: Days of Future Past |first=Spencer |last=Perry |date=May 18, 2014 |access-date=June 23, 2014 |archive-date=June 23, 2014 |archive-url=https://web.archive.org/web/20140623034422/http://www.superherohype.com/features/302671-interview-adan-canto-talks-sunspot-in-x-men-days-of-future-past#/slide/1 |url-status=live }}
• Booboo Stewart as Warpath:
  A bowie knife-wielding mutant and expert tracker with super agility, reflexes, stamina, acute senses and enhanced strength. In preparation for the role, Stewart gained 50 pounds and grew his hair much longer than usual.{{cite web |url=http://splashpage.mtv.com/2013/03/21/x-men-days-of-future-past-booboo-stewart/ |archive-url=https://web.archive.org/web/20130529003238/http://splashpage.mtv.com/2013/03/21/x-men-days-of-future-past-booboo-stewart/ |url-status=dead |archive-date=May 29, 2013 |title=X-Men: Days of Future Past: Booboo Stewart Says Role Is 'A Dream Come True' |first=Brett |last=White|date=March 21, 2013 |access-date=June 23, 2014 }}

Additionally, Famke Janssen and James Marsden reprise their roles as Jean Grey and Scott Summers, respectively, in cameo appearances. Lucas Till reprises his role as Havok. Evan Jonigkeit portrays Toad. Gregg Lowe portrays Ink. X-Men comic book writers Len Wein and Chris Claremont appear as United States congressmen. Michael Lerner plays Senator Brickman. Mark Camacho portrays U.S. President Richard Nixon. Zehra Leverman portrays Quicksilver's mother Ms. Maximoff. Singer cameos as a man with a small film camera as Magneto walks away after Mystique's escape in Paris. In a post-credits scene, Brendan Pedder portrays the ancient mutant, En Sabah Nur.{{cite web|url=http://x-menfilms.com/actor-from-the-end-credits-teaser-of-x-men-days-of-future-past-revealed/|title=Actor revealed from X-Men: Days of Future Past end credits teaser|date=May 27, 2014|access-date=May 28, 2014|archive-date=May 31, 2014|archive-url=https://web.archive.org/web/20140531085311/http://x-menfilms.com/actor-from-the-end-credits-teaser-of-x-men-days-of-future-past-revealed/|url-status=dead}}

Producer Lauren Shuler Donner stated in August 2006 that a continuation of the X-Men main film series would require a renegotiation. New cast members of X-Men: The Last Stand (2006) were signed, while the older cast members were not.{{cite news |last1=Beck |first1=Marilyn |first2=Stacy Jenel |last2=Smith |name-list-style=amp | url=http://www.dailynews.com/search/ci_4177414 | archive-url=https://archive.today/20070616033903/http://www.dailynews.com/search/ci_4177414 | url-status=dead | archive-date=June 16, 2007 | title=Major renegotiations possible stumbling block for new X-Men | work=Los Angeles Daily News | date=August 13, 2006 | access-date=July 11, 2007}} Donner said, "There is forty years worth of stories. I've always wanted to do Days of Future Past and there are just really a lot of stories yet to be told".{{cite news|first= Robert |last= Sanchez | title=Exclusive Interview: Part II With Mega Producer Lauren Shuler Donner | work = IESB.net | date = November 11, 2006 |url=http://www.iesb.net/index.php?option=com_content&task=view&id=677&Itemid=99 | archive-url = https://web.archive.org/web/20071218150552/http://www.iesb.net/index.php?option=com_content&task=view&id=677&Itemid=99 | archive-date =December 18, 2007 |access-date = August 6, 2007}} She later pitched the idea of a fourth installment of the X-Men franchise to director Bryan Singer, following the completion of the prequel X-Men: First Class (2011).{{cite news|first=Geoff|last=Boucher|url=http://latimesblogs.latimes.com/herocomplex/2010/03/bryan-singer-and-the-xmen-together-again.html|title=Bryan Singer on X-Men: First Class: It's got to be about Magneto and Professor X|work=Los Angeles Times|date=March 18, 2010|access-date=March 20, 2010|archive-date=March 22, 2010|archive-url=https://web.archive.org/web/20100322191808/http://latimesblogs.latimes.com/herocomplex/2010/03/bryan-singer-and-the-xmen-together-again.html|url-status=live}} In March 2011, Donner said the film was in "active development at Fox"; she said, "We took the treatment to Fox and they love it ... And X4 leads into X5".{{cite web|url=http://blastr.com/2011/03/producer-reveals-there-wi.php|title=Producer reveals there WILL be an X-Men 4 and 5|date=March 29, 2011|first=Nathalie|last=Caron|work=Blastr|access-date=June 24, 2011|archive-date=July 19, 2011|archive-url=https://web.archive.org/web/20110719101546/http://blastr.com/2011/03/producer-reveals-there-wi.php|url-status=dead}}

20th Century Fox saw X-Men: First Class as the first film of a new X-Men trilogy. Donner compared the franchise plans to the darker, more mature content of the Harry Potter film series.{{cite web|url=https://www.empireonline.com/features/future-of-x-men-franchise/2.asp|title=The Future of the X-Men Franchise: X-Men: First Class|work=Empire|last=De Semlyen|first=Nick|date=October 16, 2009|access-date=December 18, 2010|archive-date=October 20, 2012|archive-url=https://web.archive.org/web/20121020134930/http://www.empireonline.com/features/future-of-x-men-franchise/2.asp|url-status=live}} Early reports said Matthew Vaughn and Singer were returning to direct and produce the sequel, respectively.{{cite news | url=https://www.theguardian.com/film/2012/jan/31/matthew-vaughn-x-men-first-class | work=The Guardian | location=UK | first=Ben | last=Child | title=Matthew Vaughn to direct sequel to X-Men: First Class | date=January 31, 2012 | archive-date=November 23, 2018 | access-date=December 13, 2016 | archive-url=https://web.archive.org/web/20181123112030/https://www.theguardian.com/film/2012/jan/31/matthew-vaughn-x-men-first-class | url-status=live }} While still attached to the project as a director, Vaughn said, "First Class is similar to Batman Begins (2005), where you have the fun of introducing the characters and getting to know them, but that takes time. But with the second one, you can just get on with it and have a rollicking good time. That's the main difference between Batman Begins and The Dark Knight (2008)".{{cite news | last = Leyland | first = Matthew | title = X-Men: First Class sequel plans revealed | work = totalfilm.com | date = April 13, 2011 | url = http://www.totalfilm.com/news/x-men-first-class-sequel-plans-revealed | access-date = May 11, 2011 | archive-date = May 19, 2011 | archive-url = https://web.archive.org/web/20110519123726/http://www.totalfilm.com/news/x-men-first-class-sequel-plans-revealed | url-status = live }} Describing the possible beginning of the film, Vaughn said, "I thought it would be fun to open with the Kennedy assassination, and we reveal that the magic bullet was controlled by Magneto".{{cite web |url=https://screenrant.com/xmen-first-class-sequel-ideas-schrad-117120/ |title=X-Men: First Class Sequel Ideas Emerge |work=Screen Rant |date=May 24, 2011 |access-date=May 20, 2014 |archive-date=January 4, 2014 |archive-url=https://web.archive.org/web/20140104045446/http://screenrant.com/xmen-first-class-sequel-ideas-schrad-117120/ |url-status=live }} Singer said the film could be set around the civil rights movement or the Vietnam War,{{cite news |first=Steven |last=Zeitchik |url=http://latimesblogs.latimes.com/movies/2011/06/x-men-first-class-james-mcavoy-magneto-xavier-sequel-singer-vaughn.html |title=Bryan Singer: An X-Men: First Class sequel could be set in Vietnam, or amid the civil rights movement - latimes.com |work=LA Times Blogs |date=June 7, 2011 |access-date=March 24, 2013 |archive-date=May 20, 2013 |archive-url=https://web.archive.org/web/20130520173429/http://latimesblogs.latimes.com/movies/2011/06/x-men-first-class-james-mcavoy-magneto-xavier-sequel-singer-vaughn.html |url-status=live }} and that Wolverine could once again be featured.{{cite web |url=http://uk.movies.ign.com/articles/116/1166183p1.html |title=Wolverine to Join X-Men: First Class 2? |work=IGN |first=Chris |last=Tilly|date=May 5, 2011 |access-date=March 24, 2013 |url-status=dead |archive-url=https://web.archive.org/web/20120817003252/http://uk.movies.ign.com/articles/116/1166183p1.html |archive-date=August 17, 2012}} Singer also talked about "changing history" in an interview with Empire magazine. He said he does not want people to panic about events in the past "erasing" the storylines of the previous X-Men films, as he believes in multiverses, explaining the possibility of certain events can exist equally in the histories of alternate universes."THE PAST HAS A HABIT" Page 94~100 Empire May 2014

In 2019, Vaughn revealed that Days of Future Past was originally planned to be the third installment in the trilogy but the studio decided otherwise which contributed to his decision to leave the project. Speaking with ComingSoon.net he said "That’s one of the reasons I didn’t continue, because they didn’t listen to me. My plan was 'First Class,' then second film was new young Wolverine in the 70’s to continue those characters, my version of the X-Men. So you’d really get to know all of them, and my finale was gonna be 'Days of Future Past.' That was gonna be my number three where you bring them all… because what’s bigger than bringing in McKellen and Michael and Stewart and James and bringing them all together? When I finished the 'Days of Future Past' script with it ready to go I looked at it and said, 'I really think it would be fun to cast Tom Hardy or someone as the young Wolverine and then bring it all together at the end.' Fox read 'Days of Future Past' and went 'Oh, this is too good! We’re doing it now!'". He further commented "Hollywood doesn’t understand pacing. Their executives are driving 100 miles-per-hour looking in the rear-view mirror and not understanding why they crash."{{Cite web |last=Evry |first=Max |date=May 30, 2019 |title=Exclusive: Matthew Vaughn Talks His Plans for First Class Sequels |url=https://www.comingsoon.net/movies/news/1071905-exclusive-matthew-vaughn-wanted-young-wolverine-for-first-class-sequel |website=ComingSoon.net}}

Kinberg said the main focus of this film was the future of the X-Men film series. With the use of cast members from the original trilogy and from First Class, they needed to decide the sequels' destination. In preparation for the film, Kinberg studied films about time travel, including Back to the Future (1985), The Terminator (1984) and Terminator 2: Judgment Day (1991). Singer originated a philosophy and a set of rules for time travel in the film so the story would be as plausible as possible.

"Days of Future Past" is a storyline in the Marvel Comics comic book The Uncanny X-Men issues #141–142, published in 1981. It deals with a dystopian future in which mutants are incarcerated in internment camps. An adult Kate Pryde transfers her mind into her younger self, the present-day Kitty Pryde, who brings the X-Men to prevent a fatal moment in history that triggers anti-mutant hysteria. This storyline was the basis for the film.{{cite web|url=http://x-menfilms.com/blog/2013/12/03/writer-simon-kinberg-explains-how-first-class-2-turned-into-xmen-dofp/|title=Kinberg: How First Class 2 became Days of Future Past.|website=X-Men Films|access-date=January 6, 2021|archive-date=February 14, 2021|archive-url=https://web.archive.org/web/20210214085151/https://x-menfilms.com/blog/2013/12/03/writer-simon-kinberg-explains-how-first-class-2-turned-into-xmen-dofp/|url-status=dead}}

According to Kinberg, as they were writing the script, they thought it was more sensible for Wolverine to travel between time periods instead of Kitty Pryde, because of his ageless look and ability to heal rapidly. He further stated of making Wolverine the time traveler, "We made the decision for a lot of reasons  ...  he's the protagonist of the franchise, and probably the most beloved character to a mass audience".{{cite web |url=http://x-menfilms.com/2013/12/03/writer-simon-kinberg-explains-how-first-class-2-turned-into-xmen-dofp/ |title=Kinberg: How First Class 2 became Days of Future Past |first=Anthony |last=XMF |date=December 3, 2013 |access-date=December 27, 2013 |archive-date=December 8, 2013 |archive-url=https://web.archive.org/web/20131208164738/http://x-menfilms.com/2013/12/03/writer-simon-kinberg-explains-how-first-class-2-turned-into-xmen-dofp/ |url-status=dead }} Kinberg and Vaughn considered Bishop and Cable candidates for the role of time traveler. Kinberg said Rachel Summers was in the first draft of the script; she sent Wolverine back to 1973. The character was later replaced with Kitty Pryde, to whom Kinberg gave a secondary power of sending people's consciousnesses into the past.{{Cite web|date=June 19, 2014|title=Simon Kinberg on Kitty Pryde taking over Rachel Summers' role in X-MEN: DAYS OF FUTURE PAST. {{!}} X-Men Films|url=http://x-menfilms.com/simon-kinberg-on-kitty-pryde-taking-over-rachel-summers-role-in-x-men-days-of-future-past/|archive-url=https://web.archive.org/web/20140619230053/http://x-menfilms.com/simon-kinberg-on-kitty-pryde-taking-over-rachel-summers-role-in-x-men-days-of-future-past/|url-status=dead|archive-date=2014-06-19|access-date=November 15, 2021}} Angel Salvadore, Juggernaut, Jubilee, Nightcrawler and Psylocke were also considered for the film.{{Cite web |date=2014-08-07 |title=What Happened To The Rest Of The Missing First Class Cast? {{!}} X-Men: Days Of Future Past's Secrets Explained {{!}} Features {{!}} Empire |url=http://www.empireonline.com/features/days-of-future-past-secrets-explained/p8 |access-date=2022-07-10 |archive-date=August 7, 2014 |archive-url=https://web.archive.org/web/20140807022200/http://www.empireonline.com/features/days-of-future-past-secrets-explained/p8 |url-status=bot: unknown }}{{cite web |url=https://www.cinemablend.com/new/Juggernaut-Almost-Looked-Like-X-Men-Days-Future-Past-43494.html |title=Juggernaut Almost Looked Like This in X-Men: Days of Future Past |author=O'Connell, Sean |date=June 17, 2014 |access-date=June 22, 2014 |archive-date=June 21, 2014 |archive-url=https://web.archive.org/web/20140621235056/http://www.cinemablend.com/new/Juggernaut-Almost-Looked-Like-X-Men-Days-Future-Past-43494.html |url-status=live }}{{cite web |url=https://screenrant.com/x-men-days-future-past-concept-art-jubilee |title=X-Men: Days of Future Past Concept Art Reveals Future Jubilee & Juggernaut |author=Shaw-Williams, Hannah |website=Screen Rant |date=June 18, 2014 |access-date=June 22, 2014 |archive-date=June 21, 2014 |archive-url=https://web.archive.org/web/20140621064935/http://screenrant.com/x-men-days-future-past-concept-art-jubilee/ |url-status=live }}{{cite web |url=http://www.superherohype.com/news/295935-gambit-and-nightcrawler-heading-to-x-men-apocalypse |title=Gambit and Nightcrawler Heading to X-Men: Apocalypse? |date=March 20, 2014 |access-date=November 26, 2014 |first=Silas |last=Lesnick |archive-date=August 22, 2014 |archive-url=https://web.archive.org/web/20140822010017/http://www.superherohype.com/news/295935-gambit-and-nightcrawler-heading-to-x-men-apocalypse |url-status=live }}{{cite web |url=http://x-menfilms.com/simon-kinberg-x-men-apocalypse-completes-the-first-class-trilogy/ |title=Simon Kinberg: X-Men: Apocalypse Completes the First Class Trilogy |date=September 26, 2014 |access-date=September 27, 2014 |archive-date=September 29, 2014 |archive-url=https://web.archive.org/web/20140929140245/http://x-menfilms.com/simon-kinberg-x-men-apocalypse-completes-the-first-class-trilogy/ |url-status=dead }}

Singer was asked how the film integrates the themes of the earlier X-Men films; he said, "It establishes that some villain characters may have been right with their fears. It confronts the notions of hope and second chances. Its characters that are lost trying to find themselves. In X-Men 1 and 2, the characters had come into their own and knew who they were. In this one, they're all lost and they're trying to keep it together".{{cite web |url=https://www.denofgeek.com/movies/bryan-singer/29368/bryan-singer-interview-x-men-days-of-future-past-star-trek-and-more |title=Bryan Singer interview: X-Men. Days of Future Past, Star Trek and more |first=Ryan |last=Lambie |date=February 19, 2014 |access-date=June 25, 2014 |archive-date=June 13, 2014 |archive-url=https://web.archive.org/web/20140613011035/http://www.denofgeek.com/movies/bryan-singer/29368/bryan-singer-interview-x-men-days-of-future-past-star-trek-and-more |url-status=live }}

In November 2011, Simon Kinberg—co-writer of X-Men: The Last Stand and co-producer of X-Men: First Class—was hired to write the film's screenplay.{{cite web|first=Josh|last=Wilding|url=http://www.superherohype.com/news/article/168795-exclusive-simon-kinberg-writing-x-men-first-class-sequel|title=Exclusive: Simon Kinberg Writing X-Men: First Class Sequel|work=Superherohype.com|date=November 3, 2011|access-date=November 3, 2011|archive-date=August 25, 2012|archive-url=https://web.archive.org/web/20120825001942/http://www.superherohype.com/news/article/168795-exclusive-simon-kinberg-writing-x-men-first-class-sequel|url-status=live}} In May 2012, 20th Century Fox announced the film would be released on July 18, 2014.{{cite web|title= The X-Men: First Class Sequel Set for July 18, 2014|url= http://www.superherohype.com/news/articles/170859-the-x-men-first-class-sequel-set-for-july-18-2014|date= May 31, 2012|access-date= February 14, 2013|archive-date= April 2, 2013|archive-url= https://web.archive.org/web/20130402221129/http://www.superherohype.com/news/articles/170859-the-x-men-first-class-sequel-set-for-july-18-2014|url-status= live}} The release was later moved forward to May 23, 2014.{{cite web|url=http://www.superherohype.com/news/articles/177641-20th-century-fox-sets-dates-for-independence-day-2-assassins-creed-apes-and-x-men|title=20th Century Fox Sets Dates for Independence Day 2, Assassin's Creed, Apes and X-Men!|date=June 20, 2013|access-date=June 21, 2013|archive-date=June 22, 2013|archive-url=https://web.archive.org/web/20130622112738/http://www.superherohype.com/news/articles/177641-20th-century-fox-sets-dates-for-independence-day-2-assassins-creed-apes-and-x-men|url-status=live}} In August 2012, the title for the film was confirmed to be X-Men: Days of Future Past. The film is inspired by Chris Claremont and John Byrne's X-Men comic book storyline, "Days of Future Past", which introduced the idea of an alternate future for mutants that grew from the Brotherhood of Evil Mutants' killing of a senator, leading to a future in which mutants are hunted by Sentinels.{{cite web|title= The First Class Sequel is Officially X-Men: Days of Future Past|url= http://www.superherohype.com/news/articles/172079-the-first-class-sequel-is-officially-x-men-days-of-future-past|first= Silas|last= Lesnick|access-date= February 14, 2013|date= August 1, 2012|archive-date= October 14, 2018|archive-url= https://web.archive.org/web/20181014141113/https://www.superherohype.com/news/172079-the-first-class-sequel-is-officially-x-men-days-of-future-past|url-status= live}}

In October 2012, Vaughn left the role of director to focus on Mark Millar's Kingsman: The Secret Service (2014).{{cite web|last=Trumbore|first=Dave|title=Matthew Vaughn Out as Director of X-MEN: FIRST CLASS Sequel, X-MEN: DAYS OF FUTURE PAST; Bryan Singer May Replace Him|url=https://collider.com/bryan-singer-x-men-first-class-2-sequel/206289/|work=Collider|date=October 25, 2012|access-date=March 24, 2013|archive-date=January 8, 2020|archive-url=https://web.archive.org/web/20200108094445/https://collider.com/bryan-singer-x-men-first-class-2-sequel/206289/|url-status=dead}} He originally wanted a different First Class sequel helmed by another director with a young Wolverine possibly played by Tom Hardy, before returning to direct Days of Future Past (set in the 1980s) himself.{{cite web|url=https://screencrush.com/matthew-vaughn-x-men-wolverine/|website=screencrush.com|title=Matthew Vaughn Reveals Abandoned X-Men Plans|date=February 16, 2015|author=Britt Hayes|access-date=January 6, 2021|archive-date=August 7, 2020|archive-url=https://web.archive.org/web/20200807131315/https://screencrush.com/matthew-vaughn-x-men-wolverine/|url-status=live}}{{Cite web|date=September 19, 2017|title=Matthew Vaughn Reveals Original X-Men: Days of Future Past Plans|url=https://collider.com/matthew-vaughn-x-men-days-of-future-past/|access-date=January 5, 2021|website=Collider|language=en-US|archive-date=November 12, 2020|archive-url=https://web.archive.org/web/20201112042554/https://collider.com/matthew-vaughn-x-men-days-of-future-past/|url-status=live}}{{Cite web|date=May 30, 2019|title=Matthew Vaughn Reveals Scuttled X-Men Trilogy Plans After First Class|url=https://collider.com/matthew-vaughn-x-men-first-class-trilogy-plans-days-of-future-past/|access-date=January 5, 2021|website=Collider|language=en-US|archive-date=February 17, 2021|archive-url=https://web.archive.org/web/20210217104349/https://collider.com/matthew-vaughn-x-men-first-class-trilogy-plans-days-of-future-past/|url-status=live}} Singer was later announced as the film's director; it was his third directorial role in the X-Men film series.{{cite web |title= Bryan Singer Officially Set for X-Men: Days of Future Past |url= http://www.superherohype.com/news/articles/173425-bryan-singer-officially-set-for-x-men-days-of-future-past |access-date= February 14, 2013 |date= October 30, 2012 |first= Silas |last= Lesnick |archive-date= April 2, 2013 |archive-url= https://web.archive.org/web/20130402063945/http://www.superherohype.com/news/articles/173425-bryan-singer-officially-set-for-x-men-days-of-future-past |url-status= live }} In preparation for the film, Singer approached James Cameron to discuss time travel, string theory and multiverses.{{cite web |url=http://www.superherohype.com/news/articles/174689-bryan-singer-talks-x-men-days-of-future-past |title=Bryan Singer Talks X-Men: Days of Future Past |access-date=April 18, 2013 |date=January 28, 2013 |first=Perry |last=Spencer |archive-date=January 31, 2013 |archive-url=https://web.archive.org/web/20130131095157/http://www.superherohype.com/news/articles/174689-bryan-singer-talks-x-men-days-of-future-past |url-status=live }} In the same month, Richard Stammers was approached to be the visual effects supervisor, as Singer liked his work in the 2012 film Prometheus.

Singer brought back most of the crew he had in X-Men (2000) and X2 (2003). In December 2012, two long-absent designers were hired: production designer John Myhre, who had only done X-Men, and costume designer Louise Mingenbach—who also did X2 and X-Men Origins: Wolverine.{{cite web|url=https://collider.com/johny-myhre-x-men-days-of-future-past-interview/|title=Production Designer John Myhre Talks Designing the Sentinels, Creating the First "Really Epic X-MEN", and More on the Set of X-MEN: DAYS OF FUTURE PAST|first=Steve|last=Weintraub|work=Collider|access-date=March 24, 2016|date=April 30, 2014|archive-date=June 24, 2016|archive-url=https://web.archive.org/web/20160624041748/http://collider.com/johny-myhre-x-men-days-of-future-past-interview/|url-status=live}}{{cite web|url=https://www.ign.com/articles/2012/11/16/singer-promises-no-leather-suits-in-x-men-days-of-future-past|title=Singer Promises "No Leather Suits" in X-Men: Days of Future Past|access-date=March 24, 2013|date=November 16, 2012|first=Max|last=Nicholson|work=IGN|archive-date=November 22, 2012|archive-url=https://web.archive.org/web/20121122012326/http://www.ign.com/articles/2012/11/16/singer-promises-no-leather-suits-in-x-men-days-of-future-past|url-status=live}} In February 2013, John Ottman—who aside from X-Men, collaborated on all of Singer's works since The Usual Suspects (1995)—was confirmed to work on the music and the editing of the film.{{cite web |url=https://www.youtube.com/watch?v=wMPQwxmWL6A |title=Bryan Singer & Nicholas Hoult Talk X-Men: Days of Future Past – EXCLUSIVE! |website=YouTube |date=February 28, 2013 |access-date=March 24, 2013 |archive-date=February 26, 2014 |archive-url=https://web.archive.org/web/20140226220017/http://www.youtube.com/watch?v=wMPQwxmWL6A |url-status=live }}

{{Quote box|width=30%|align=right|quote=I decided that the next time I got myself involved in a movie that had a huge amount of attention already that I would use Twitter. As a way of connecting with fans, principally. And also as a way of clearing up misunderstandings so that people know. You know, they may hear that an actor is cast or hear somebody is going to be in it, but until I say it's so, that's the confirmation.{{cite web|url=https://www.huffingtonpost.com/2013/04/01/lady-gaga-deleted-x-men-days-of-future-past-dazzler_n_2994928.html |title=Lady Gaga in X-Men: Days of Future Past as Dazzler? Bryan Singer Tweets Casting Prank on April Fools' Day|date=April 1, 2013|access-date= April 7, 2013|author= —Rosen, Christopher|work=Huffington Post}}|source=—Bryan Singer, explaining the Twitter presence of the film}}

Singer used the online social networking service Twitter to announce casting of the film. In November 2012, he announced that James McAvoy, Michael Fassbender, Jennifer Lawrence and Nicholas Hoult would reprise their roles from X-Men: First Class. Later the same month, he announced that Patrick Stewart and Ian McKellen would reprise their respective roles as the older versions of the characters played by McAvoy and Fassbender.{{cite magazine | last = Vary | first = Adam B. | url = http://insidemovies.ew.com/2012/11/27/ian-mckellan-patrick-stewart-x-men-days-of-future-past/ | title = Ian McKellen, Patrick Stewart returning for X-Men: Days of Future Past | magazine = Entertainment Weekly | date = November 27, 2012 | access-date = November 27, 2012 | archive-date = August 15, 2014 | archive-url = https://web.archive.org/web/20140815195837/http://insidemovies.ew.com/2012/11/27/ian-mckellan-patrick-stewart-x-men-days-of-future-past/ | url-status = live }} In December, Singer announced that Hugh Jackman would reprise his role as Wolverine.{{cite web |date=December 18, 2012 |last=Singer |first=Bryan |title=I would officially like to welcome @RealHughJackman to the cast of #Xmen Days of Future Past. Very excited! More to come ... |url=https://twitter.com/BryanSinger/status/281256660025081857 |via=Twitter |access-date=March 12, 2013 |archive-date=December 23, 2012 |archive-url=https://web.archive.org/web/20121223105012/https://twitter.com/BryanSinger/status/281256660025081857 |url-status=live}}Wikipedia:SPS

In January 2013, Singer announced that Anna Paquin, Shawn Ashmore, and Elliot Page would reprise their roles of Rogue, Iceman, and Kitty Pryde.{{cite web |url=https://screenrant.com/x-men-days-of-future-past-rogue-iceman-kitty-pryde/ |title=Iceman, Kitty Pryde & Rogue Return For X-Men: Days of Future Past |work=Screen Rant |date=January 26, 2013 |last=Keyes |first=Rob |access-date=April 16, 2020 |archive-date=October 6, 2019 |archive-url=https://web.archive.org/web/20191006115926/https://screenrant.com/x-men-days-of-future-past-rogue-iceman-kitty-pryde/ |url-status=live }} In February, Singer announced that Peter Dinklage would star in the film as the main antagonist.{{cite web |date=February 13, 2013 |last=Singer |first=Bryan |title=Officially like to welcome #PeterDinklage from #GameOfThrones to #XMEN #DaysofFuturePast Very very excited! |url=https://twitter.com/BryanSinger/status/301886258572046338 |via=Twitter |access-date=March 12, 2013 |archive-date=August 11, 2013 |archive-url=https://web.archive.org/web/20130811044453/https://twitter.com/BryanSinger/status/301886258572046338 |url-status=live}}Wikipedia:SPS In March, Singer announced that French actor Omar Sy had joined the cast. Halle Berry said in an interview that she would reprise her role as Storm, which was followed by an announcement from Singer that Berry would be in the film.{{cite web |url=https://twitter.com/BryanSinger/status/308672268509257730 |title=Twitter / BryanSinger: Couldn't be more excited that #HalleBerry has joined the cast of #XMen #DaysofFuturePast. Hopefully she can improve the weather in Montreal. |date=March 4, 2013 |access-date=April 19, 2013 |first=Bryan |last=Singer |archive-date=February 3, 2016 |archive-url=https://web.archive.org/web/20160203172308/https://twitter.com/BryanSinger/status/308672268509257730 |url-status=live }}Wikipedia:SPS Singer tweeted a picture of the cast, which confirmed that Daniel Cudmore would return as Colossus and that Fan Bingbing and Booboo Stewart had joined the cast.

In April, Singer announced that American singer and songwriter Lady Gaga had joined the cast as Dazzler,{{cite web |url=https://twitter.com/BryanSinger/status/318836138452328448 |title=Twitter / Bryan Singer: I can finally announce @ladygaga is joining #XMen #DaysofFuturePast as Dazzler. One of my all-time favorite characters. Can't wait! |date=April 1, 2013 |access-date=April 7, 2013 |first=Bryan |last=Singer |archive-date=November 8, 2015 |archive-url=https://web.archive.org/web/20151108101701/https://twitter.com/BryanSinger/status/318836138452328448 |url-status=live }}Wikipedia:SPS but it was later revealed as an April Fools' Day prank. Singer retweeted a photograph of himself, Adan Canto, and confirmed cast members Patrick Stewart, McKellen, and Ashmore, which was followed by a confirmation from Canto that he had joined the cast.{{cite web |url=http://www.hitfix.com/news/the-followings-adan-canto-joins-x-men-days-of-future-past |title=The Following{{'}}s Adan Canto joins X-Men: Days of Future Past |access-date=April 22, 2013 |date=April 21, 2013 |first=Chris |last=Eggertsen |archive-date=April 26, 2013 |archive-url=https://web.archive.org/web/20130426130926/http://www.hitfix.com/news/the-followings-adan-canto-joins-x-men-days-of-future-past |url-status=live }} In May, Singer announced that Evan Peters had been cast as Quicksilver.{{cite web |url=https://twitter.com/BryanSinger/status/337731122521862144 |title=Thrilled to say #EvanPeters is joining #XMen #DaysOfFuturePast as #Quicksilver. |work=Twitter |date=May 23, 2013 |access-date=May 28, 2013 |first=Bryan |last=Singer |archive-date=October 11, 2013 |archive-url=https://web.archive.org/web/20131011034244/https://twitter.com/BryanSinger/status/337731122521862144 |url-status=live }}Wikipedia:SPS In June, Australian actor Josh Helman was cast in a role.{{cite web|last=Sneider|first=Jeff|title=X-Men: Days of Future Past Casts Rising Aussie Actor Josh Helman (Exclusive)|url=https://www.thewrap.com/movies/column-post/x-men-days-future-past-casts-rising-aussie-actor-josh-helman-exclusive-99696|work=TheWrap|access-date=June 25, 2013|date=June 25, 2013|archive-date=June 28, 2013|archive-url=https://web.archive.org/web/20130628073235/http://www.thewrap.com/movies/column-post/x-men-days-future-past-casts-rising-aussie-actor-josh-helman-exclusive-99696|url-status=dead}} In July, Singer tweeted a picture of actor Lucas Till on the set of the film, which confirmed that he was returning as Havok.{{cite web|url=https://twitter.com/BryanSinger/statuses/356851235086819328|title="Mankind must put an end to war before war puts an end to mankind." -JFK @lucastill #xmen #DaysOfFuturePast|first=Bryan|last=Singer|work=Twitter|date=July 15, 2013|access-date=July 15, 2013|archive-date=March 31, 2016|archive-url=https://web.archive.org/web/20160331235302/https://twitter.com/bryansinger/statuses/356851235086819328|url-status=live}}Wikipedia:SPS In January 2014, Evan Jonigkeit had been cast as the younger version of Toad.{{cite web|url=http://www.mtv.com/news/articles/1720001/x-men-days-of-future-past-evan-jonigkeit.jhtml |archive-url=https://web.archive.org/web/20140107205623/http://www.mtv.com/news/articles/1720001/x-men-days-of-future-past-evan-jonigkeit.jhtml |url-status=dead |archive-date=January 7, 2014 |title=Which Classic X-Men Character Is Making A Days Of Future Past Comeback?|website=MTV }}

Stan Lee, co-creator of the X-Men, was scheduled to shoot a cameo appearance in late August 2013 at Montreal, Canada, but ultimately chose to attend the Fan Expo in Toronto instead.{{cite web|last=Johnston|first=Rich|title=Don't Expect To See Stan Lee In X-Men: Days Of Future Past – But Do Look Forward To His New Reality TV Show|url=https://bleedingcool.com/movies/dont-expect-to-see-stan-lee-in-x-men-days-of-future-past-but-do-look-forward-to-his-new-reality-tv-show-annihilator/|work=Bleeding Cool|access-date=September 22, 2021|date=August 23, 2013|archive-date=January 25, 2021|archive-url=https://web.archive.org/web/20210125215252/https://bleedingcool.com/movies/dont-expect-to-see-stan-lee-in-x-men-days-of-future-past-but-do-look-forward-to-his-new-reality-tv-show-annihilator/|url-status=live}}

X-Men: Days of Future Past had a production budget of $205 million.{{cite web|url=https://www.filmla.com/wp-content/uploads/2017/10/2014_FeatureFilm_study_v10_WEB.pdf|page=6|title=2014 Feature Film Study|publisher=FilmL.A.|access-date=March 30, 2018|archive-date=May 20, 2023|archive-url=https://web.archive.org/web/20230520045503/https://www.filmla.com/wp-content/uploads/2017/10/2014_FeatureFilm_study_v10_WEB.pdf|url-status=live}} Principal photography began on April 15, 2013, at Mel's Cité du Cinema in Montreal, Canada, and ended on August 17, 2013.{{cite web|url=http://www.superherohype.com/news/articles/178807-production-wraps-on-x-men-days-of-future-past|title=Production Wraps on X-Men: Days of Future Past|first=Spencer|last=Perry|date=August 17, 2013|access-date=August 18, 2013|archive-date=August 22, 2013|archive-url=https://web.archive.org/web/20130822122203/http://www.superherohype.com/news/articles/178807-production-wraps-on-x-men-days-of-future-past|url-status=live}}{{cite web|last=Weintraub|first=Steve|title=Bryan Singer Talks JACK THE GIANT SLAYER, Re-Writing the Film in Pre-Production, X-MEN: FIRST CLASS, BATTLESTAR GALACTICA, and More|url=https://collider.com/bryan-singer-jack-the-giant-slayer-x-men-interview/|work=Collider|access-date=February 25, 2013|date=February 25, 2013|archive-date=January 8, 2020|archive-url=https://web.archive.org/web/20200108153626/https://collider.com/bryan-singer-jack-the-giant-slayer-x-men-interview/|url-status=live}} Filming had to begin in April 2013 to accommodate the cast's individual schedules. Olympic Stadium, Montreal City Hall, and McGill University were also used as filming locations.{{cite web|url=http://www.torontosun.com/2013/04/28/montreal-invaded-by-x-men|title=Montreal invaded by X-Men|author=QMI Agency|access-date=May 14, 2013|date=April 28, 2013|archive-date=August 8, 2014|archive-url=https://web.archive.org/web/20140808004609/http://www.torontosun.com/2013/04/28/montreal-invaded-by-x-men|url-status=live}}{{cite web |url=http://www.superherohype.com/news/articles/177287-tensions-rise-in-new-set-photo-from-x-men-days-of-future-past |title=Tensions Rise in New Set Photo From X-Men: Days of Future Past |date=June 4, 2013 |access-date=June 5, 2013 |first=Spencer |last=Perry |archive-date=June 8, 2013 |archive-url=https://web.archive.org/web/20130608045055/http://www.superherohype.com/news/articles/177287-tensions-rise-in-new-set-photo-from-x-men-days-of-future-past |url-status=live }} An aerial plate unit was sent to film in Washington, D.C. Additional filming took place in Montreal in November 2013 and February 2014.{{cite web |url=https://www.ign.com/articles/2013/11/18/x-men-days-of-future-past-heads-back-to-montreal-for-reshoots |title=X-MEN: DAYS OF FUTURE PAST HEADS BACK TO MONTREAL FOR RESHOOTS |date=November 18, 2013 |access-date=April 16, 2020 |archive-date=August 2, 2019 |archive-url=https://web.archive.org/web/20190802222123/https://www.ign.com/articles/2013/11/18/x-men-days-of-future-past-heads-back-to-montreal-for-reshoots |url-status=live }}{{cite web |url=https://www.cinemablend.com/new/Beast-Gets-Work-X-Men-Days-Future-Past-Set-Photo-41700.html |title=Beast Gets To Work In New X-Men: Days Of Future Past Set Photo |date=February 17, 2014 |access-date=April 2, 2014 |archive-date=August 2, 2019 |archive-url=https://web.archive.org/web/20190802222125/https://www.cinemablend.com/new/Beast-Gets-Work-X-Men-Days-Future-Past-Set-Photo-41700.html |url-status=live }} According to the Calgary Herald, the film is the second most expensive produced by 20th Century Fox after Avatar (2009).{{cite web |url=https://www.hollywoodreporter.com/heat-vision/report-days-future-past-second-657780 |title=Report: Days of Future Past Second Only to Avatar in Cost to Fox |date=November 19, 2013 |access-date=December 29, 2013 |first=Greame |last=McMillan |website=The Hollywood Reporter |archive-date=December 9, 2013 |archive-url=https://web.archive.org/web/20131209065727/http://www.hollywoodreporter.com/heat-vision/report-days-future-past-second-657780 |url-status=live }} Comic book writer Chris Claremont said in an interview that he was consulted for the film.{{cite web|url=http://geek-news.mtv.com/2013/08/15/chris-claremont-x-men-days-of-future-past-interview/ |archive-url=https://web.archive.org/web/20130819000806/http://geek-news.mtv.com/2013/08/15/chris-claremont-x-men-days-of-future-past-interview |url-status=dead |archive-date=August 19, 2013 |title=X-Icon Chris Claremont Talks X-Men's 50th, Days of Future Past |work=MTV |date=August 15, 2013 |access-date=May 3, 2014}}

X-Men: Days of Future Past is the first X-Men film to be filmed in native 3D; it was shot using Arri Alexa-M cameras with Leica Prime lenses and Fujinon Zoom lenses, along with 3ality Technica TS-35 camera rigs and Stereo Image Processor (SIP) technology systems.{{cite web|url= https://twitter.com/definitionmags/status/315433238673891328|title= Twitter / definitionmags: X-Men: Days of Future Past|access-date= March 24, 2013|date= March 23, 2013|archive-date= January 12, 2014|archive-url= https://web.archive.org/web/20140112215533/https://twitter.com/definitionmags/status/315433238673891328|url-status= live}}Wikipedia:SPS{{cite web |url=http://blogs.indiewire.com/theplaylist/bryan-singer-to-shoot-x-men-days-of-future-past-in-3d-hayley-atwell-in-captain-america-the-winter-soldier-after-all-20130213 |title=Bryan Singer To Shoot X-Men: Days Of Future Past In 3D |first=Kevin |last=Jagernauth |date=February 13, 2013 |access-date=March 16, 2013 |archive-url=https://web.archive.org/web/20130605045949/http://blogs.indiewire.com/theplaylist/bryan-singer-to-shoot-x-men-days-of-future-past-in-3d-hayley-atwell-in-captain-america-the-winter-soldier-after-all-20130213 |archive-date=June 5, 2013 |url-status=dead}} Director of photography Newton Thomas Sigel was asked about using Arri Alexa-M cameras; he said, "For Bryan and myself, the Alexa has been almost the gateway to getting the look we like in film". Sigel added that the Arri Alexa-M camera's small size was a big advantage to the film's main unit, which carried three 3D rigs. The film also used the Alexa XTs for the production's 2D work.{{cite web |url=http://www.arri.de/news/alexa-xt-on-x-men/ |title=ARRI Group: News |access-date=June 22, 2014 |archive-url=https://web.archive.org/web/20140727192335/http://www.arri.de/news/alexa-xt-on-x-men/ |archive-date=July 27, 2014 |url-status=dead}}

Production designer John Myhre said his work load was "six months squeeze[d] down in to 3-4 months", given the sets were massive but he did not have the usual time to design and build before principal photography began. The lue underground hallways and Cerebro sets were faithful recreations of the sets seen in the first X-Men, albeit ransacked and damaged to imply the government had raided the mansion. The sets had many hidden "Xs", including the staircase of the X-Mansion. Myrhe said he wanted to embrace the 1970s setting in the same way First Class embraced its 1960s setting, and costume designer Louise Mingenbach also drew heavily from 1970s styles for the clothing seen in the 1973 scenes. Hoult wore corduroys, Jackman a wooden-paneled buckle and a peacock-print shirt, and McAvoy wore a brown leather jacket. Peters wore 1981-inspired clothing; this was Mingenbach's way of showing Quicksilver's irreverence for the exact time and place. In one scene, Mingenbach gave Fassbender as the younger Erik Lehnsherr a fedora as a nod to the one the character wore in the first X-Men film.{{cite web |url=https://www.gq.com/entertainment/fashion/201405/x-men-days-of-future-past-costumes |title=GQ+A with Louise Mingenbach: The Days of Future Past Costume Designer on X-Men |date=May 23, 2014 |work=GQ |access-date=June 22, 2014 |first=Phili |last=Stelios |archive-date=May 27, 2014 |archive-url=https://web.archive.org/web/20140527042910/http://www.gq.com/entertainment/fashion/201405/x-men-days-of-future-past-costumes |url-status=dead }} For the future period of the film, Mingenbach wanted a darker, slightly futuristic and tactical look for the characters. This included changing the suit Patrick Stewart had previously worn as Xavier to battle fatigues.

The Sentinels had two separate versions, to depict how the earlier prototypes built by Trask in the 1970s evolved into the adaptable killing machines of the dystopian future.{{cite video|title=Sentinels: For a Secure Future|location=X-Men: Days of Future Past Blu-ray|year=2014|publisher=20th Century Fox Home Entertainment|type=Featurette}} Singer described the 1973 version as "a little fun and stylish but also a little retro", with a key element being that they are made of plastic to be unaffected by Magneto's powers. Myhre used styles from molded plastics from the 1970s to design Sentinels from that period, and cited inspiration from both the cars of the decade and "those wonderful TV sets that were round with smoked glass panels". The overall style was bulky to fit "the traditional idea of a robot looks like", and drew the most from the comics version, such as the purple color and a humanoid shape, while trying to stand out on its own with its retro design.{{cite web |url=https://collider.com/johny-myhre-x-men-days-of-future-past-interview/ |title=John Myhre Talks X-Men Days of Future Past, Sentinels and Easter Eggs |first=Steve |last=Weintraub |website=Collider |date=April 30, 2014 |access-date=June 24, 2014 |archive-date=June 24, 2016 |archive-url=https://web.archive.org/web/20160624041748/http://collider.com/johny-myhre-x-men-days-of-future-past-interview/ |url-status=live }} The robots' ability to fly was compared to a Harrier jump jet, as the Sentinels had vertical takeoff and could glide. Life-sized Sentinels were built by Legacy Effects to be featured on the set, and had articulated joints to be fully poseable. The sound effects averted metallic noises, while adding woof effects on the Sentinels' footsteps to display its weight on the ground.

On the other hand, the future Sentinels would resemble "giant versions of Mystique" to show how their technological development was based on studying the shapeshifting mutant's DNA. Thus their design is sleek and feminine, with a body covered in mechanical scales that move during the process of adapting to a mutant's attack, while also featuring angular and dark faces to enhance the intimidation. The future robots would feature what Singer described as "biomechanical technology to transform to adapt to other mutants, to take on their physicality and some of their powers to use against mutantkind", which the director imagined to be fueled by nanotechnology and "the ability to really change things almost at a molecular level". The Sentinels' heads would also open up as an extra weapon, and for straighter combat the robots could create blades and spikes out of their limbs. The crackling sound of the robots' scales was made by rubbing riveted belts on shale rocks.{{cite web|url=http://www.fxguide.com/featured/future-threat-x-men-days-of-future-past/|title=Future threat – X-Men: Days of Future Past|work=Fxguide|first=Ian|last=Failes|date=May 27, 2014|access-date=October 16, 2014|archive-date=October 1, 2018|archive-url=https://web.archive.org/web/20181001002659/https://www.fxguide.com/featured/future-threat-x-men-days-of-future-past/|url-status=live}}

For the future setting of the film, a set featuring a hillside monastery was built. Myhre was inspired by Chinese temples built on the sides of cliffs. The future set also featured a mixture of architectural styles from China, India, and Indonesia. Part of the set was a big wall, which was inspired by the Great Wall of China.

X-Men: Days of Future Past had 1,311 visual effects shots produced by twelve studios. Richard Stammer served as the overall effects supervisor based on his work for Prometheus (2012). The leading company was Moving Picture Company, who created the future Sentinels and worked on the sequences involving the X-Jet and Cerebro's red virtual world. The Sentinels' scaled bodies were created by adapting a tool originally developed to create hair and fur, which would later evolve into creating a proxy representation of each individual scale as a "follicle". Another major contributor was Digital Domain, with effects from the 1973 portion that encompassed nearly a third of the work. These included the Sentinels, Mystique's transformations and eyes, and various digital environments. Digital augmentation turned a remote airstrip into a Vietnam prisoner camp and added Paris' famed mansard rooftops to the Montreal locations. The environment work based on Washington, D.C. required the team to study period references of the National Mall and White House, and photograph almost all of RFK Stadium to create a detailed digital replica.{{cite web|url=http://www.artofvfx.com/?p=8066|title=X-MEN – DAYS OF FUTURE PAST: Lou Pecora – VFX|first=Vincent|last=Frei|work=Art of VFX|date=May 28, 2014|access-date=February 8, 2015|archive-date=December 30, 2014|archive-url=https://web.archive.org/web/20141230122645/http://www.artofvfx.com/?p=8066|url-status=live}} Rising Sun Pictures created a sequence considered by many reviewers the centerpiece of the film's effects, where Quicksilver uses his super speed in the Pentagon kitchen. Depicting how, to a speedster, actions in real time come down to a virtual standstill, objects float around in slow-motion. After doing a LIDAR scan of the kitchen set, the digital recreation added many computer-generated props—cooking gear, cutlery, vegetables and water released by a fire sprinkler system—rendered in near microscopic detail regarding placement and lighting, particularly because the footage had to work in 3D. To simulate Quicksilver running on the walls, Evan Peters and a stunt double were filmed in both the set being suspended by a harness and on a treadmill that stood in front of a chroma key green screen. Only Peters' legs were digitally replaced.{{cite web|url=http://rsp.com.au/x-men-days-of-future-past/|title=Rising Sun Pictures Makes Time Stand Still in "X-Men: Days of Future Past"|publisher=Rising Sun Pictures|access-date=January 17, 2015|archive-date=January 17, 2015|archive-url=https://web.archive.org/web/20150117070849/http://rsp.com.au/x-men-days-of-future-past/|url-status=dead}} Despite the sequence only having 29 effects shots, it required nearly seven months of work from RSP's team of 70 artists.{{cite web|url=http://www.abc.net.au/news/2015-01-16/adelaide-visual-effects-supervisor-shocked-by-oscar-nomination/6021988|title=Oscar nominations 2015: Adelaide visual effects supervisor 'shocked' by Oscar nomination|work=ABC Online|date=January 17, 2015|access-date=January 17, 2015|archive-date=February 15, 2022|archive-url=https://web.archive.org/web/20220215181406/https://www.abc.net.au/news/2015-01-16/adelaide-visual-effects-supervisor-shocked-by-oscar-nomination/6021988|url-status=live}}

Rhythm and Hues Studios worked on Beast's transformations, the creation of Xavier's plane, and speed effects for Quicksilver. They also worked with Digital Domain on the sequence featuring the inside of the 1973 Sentinel. Mokko Studio worked on Mystique's eyes and costume fixes. Cinesite worked on the future New York City in the opening prologue along with clean-ups, wire removals, and production fixes. Fuel VFX worked on holographic effects and Havok's mutant powers. Vision Globale worked on visual effects relating to a dream and flashback sequence. Hydraulx, Lola and Method Studios handled a number of compositions and production fixes. The Third Floor worked on extensive story-boarding and visualisation.{{cite web |url=http://www.artofvfx.com/?p=7910 |title=X-Men—Days of Future Past: Richard Stammers—Production VFX Supervisor |first=Vincent |last=Frei |date=May 23, 2014 |access-date=May 31, 2014 |archive-date=May 28, 2014 |archive-url=https://web.archive.org/web/20140528105533/http://www.artofvfx.com/?p=7910 |url-status=live }}

{{main|X-Men: Days of Future Past (soundtrack)}}

Director Bryan Singer's regular collaborator John Ottman worked on the score of the film, in addition to being its editor,{{cite web |url=http://www.superherohype.com/news/articles/175917-john-ottman-to-score-x-men-days-of-future-past |title=John Ottman to Score X-Men: Days of Future Past |date=April 2, 2013 |access-date=April 18, 2013 |first=Spencer |last=Perry |archive-date=April 5, 2013 |archive-url=https://web.archive.org/web/20130405055201/http://www.superherohype.com/news/articles/175917-john-ottman-to-score-x-men-days-of-future-past |url-status=live }} thereby becoming the first composer to score more than one film in the X-Men film series, having previously scored X2 (2003). He reused some of themes from X2, including the title theme, which is a first for an X-Men film. He also used modern instrumentation and synth elements for the score, upon Singer's request, as it could be compared to other contemporary superhero scores.{{cite web|url=http://www.hitfix.com/in-contention/john-ottman-on-the-balancing-act-of-editing-and-scoring-x-men-days-of-future-past/|title=John Ottman on the balancing act of editing and scoring X-Men: Days of Future Past|work=HitFix|first=Kristopher|last=Tapley|date=May 22, 2014|access-date=October 18, 2014|archive-date=July 19, 2014|archive-url=https://web.archive.org/web/20140719205919/http://www.hitfix.com/in-contention/john-ottman-on-the-balancing-act-of-editing-and-scoring-x-men-days-of-future-past|url-status=dead}}

The soundtrack was digitally released by Sony Classical Records on May 26, 2014{{cite web|url=https://music.apple.com/us/album/x-men-days-of-future-past-original-motion-picture/879524426 |title=iTunes - Music - X-Men: Days of Future Past (Original Motion Picture Soundtrack) by John Ottman |via=iTunes |date=May 16, 2014 |access-date=May 25, 2014}} and followed by a physical release on June 30, 2014.{{cite web|url=https://www.amazon.co.uk/X-Men-Future-Original-Picture-Soundtrack/dp/B00IUA5FC0|title=John Ottman's X-Men: Days of Future Past Soundtrack|date=May 3, 2014|access-date=May 3, 2014|via=Amazon UK|archive-date=May 22, 2014|archive-url=https://web.archive.org/web/20140522152608/http://www.amazon.co.uk/X-Men-Future-Original-Picture-Soundtrack/dp/B00IUA5FC0|url-status=live}} An expanded version of the soundtrack, including music exclusive to The Rogue Cut, was released on July 10, 2015.{{cite web |url=http://filmmusicreporter.com/2015/06/24/x-men-days-of-future-past-the-rogue-cut-soundtrack-details/ |title=X-Men: Days of Future Past - The Rogue Cut Soundtrack Details |date=June 24, 2015 |access-date=June 26, 2015 |archive-date=July 25, 2018 |archive-url=https://web.archive.org/web/20180725112112/http://filmmusicreporter.com/2015/06/24/x-men-days-of-future-past-the-rogue-cut-soundtrack-details/ |url-status=live }}

The world premiere of X-Men: Days of Future Past occurred at the Jacob K. Javits Convention Center in New York City on May 10, 2014.{{cite web |url=https://www.hollywoodreporter.com/news/bryan-singer-accusations-affect-marketing-697633 |title=Bryan Singer Accusations Affect Marketing Plans for Next X-Men, Black Box |first=Gregg |last=Kilday |work=The Hollywood Reporter |publisher=Prometheus Global Media |date=April 18, 2014 |access-date=April 22, 2014 |archive-date=June 16, 2019 |archive-url=https://web.archive.org/web/20190616064740/https://www.hollywoodreporter.com/news/bryan-singer-accusations-affect-marketing-697633 |url-status=live }}{{cite web|title=X-Men: Days of Future Past stars assemble in New York premiere|url=http://www.nydailynews.com/entertainment/gossip/confidential/x-men-days-future-stars-assemble-new-york-premiere-article-1.1788517|work=Daily News|access-date=May 14, 2014|first1=Marianne|last1=Garvey|first2=Brian|last2=Niemietz|date=May 12, 2014|archive-date=May 14, 2014|archive-url=https://web.archive.org/web/20140514103023/http://www.nydailynews.com/entertainment/gossip/confidential/x-men-days-future-stars-assemble-new-york-premiere-article-1.1788517|url-status=live}} It was released in international markets in 2D and 3D theaters on May 21, 2014, and in the United States on May 23, 2014. Premiere events were also held in London, Beijing, Moscow, Singapore, São Paulo, Melbourne, and Tokyo.{{cite web |url=http://xmenmovies.tumblr.com/post/87259056015/new-york-london-beijing-moscow-singapore-sao |title=X-Men: Days of Future Past - New York, London, Beijing, Moscow, Singapore, Sao ... |date=May 29, 2014 |access-date=June 8, 2014 |archive-date=February 3, 2016 |archive-url=https://web.archive.org/web/20160203172308/http://xmenmovies.tumblr.com/post/87259056015/new-york-london-beijing-moscow-singapore-sao |url-status=live }}Wikipedia:SPS

File:X-Men Days of Future Past cast by Gage Skidmore.jpg]]

In June 2013, 20th Century Fox presented a set tour video of X-Men: Days of Future Past at the CineEurope conference in Barcelona; director Bryan Singer acted as the tour guide.{{cite web| url=https://www.comingsoon.net/movies/news/105907-directors-tease-captain-america-the-winter-soldier-and-x-men-days-of-future-past| title=Directors Tease Captain America: The Winter Soldier and X-Men: Days of Future Past| work=Comingsoon.net| date=June 27, 2013| access-date=December 8, 2015| archive-date=October 25, 2015| archive-url=https://web.archive.org/web/20151025141950/http://www.comingsoon.net/movies/news/105907-directors-tease-captain-america-the-winter-soldier-and-x-men-days-of-future-past| url-status=live}} The set tour video was included with the home video release of the 2013 film The Wolverine.{{cite web|url=http://www.superherohype.com/news/articles/179505-the-wolverine-coming-to-dvd-and-blu-ray-december-3|title=The Wolverine Coming to DVD and Blu-ray December 3|date=October 1, 2013|access-date=October 5, 2013|first=Spencer|last=Perry|archive-date=October 4, 2013|archive-url=https://web.archive.org/web/20131004052539/http://www.superherohype.com/news/articles/179505-the-wolverine-coming-to-dvd-and-blu-ray-december-3|url-status=live}} In July 2013, Singer, writer Simon Kinberg, producers Lauren Shuler Donner and Hutch Parker, together with cast members Jennifer Lawrence, Evan Peters, Omar Sy, Elliot Page, Shawn Ashmore, Anna Paquin, Halle Berry, Ian McKellen, Patrick Stewart, Hugh Jackman, James McAvoy, Michael Fassbender, Nicholas Hoult, and Peter Dinklage presented at the 2013 San Diego Comic-Con. Footage from the film was screened.{{cite web|url=http://www.superherohype.com/news/articles/178295-comic-con-20th-century-fox-panel-live-blog|title=Comic-Con: 20th Century Fox Panel Live Blog|date=July 20, 2013|access-date=July 21, 2013|archive-date=July 25, 2013|archive-url=https://web.archive.org/web/20130725012814/http://www.superherohype.com/news/articles/178295-comic-con-20th-century-fox-panel-live-blog|url-status=live}} In August 2013, Singer presented footage from the film at the Fantasia International Film Festival.{{cite web|url=http://www.fantasiafestival.com/2013/en/films-schedule/spotlight/rated-x-a-night-with-bryan-singe|title=Rated "X": A Night With Bryan Singer|access-date=July 10, 2013|archive-date=July 15, 2013|archive-url=https://web.archive.org/web/20130715163807/http://www.fantasiafestival.com/2013/en/films-schedule/spotlight/rated-x-a-night-with-bryan-singe|url-status=dead}} In March 2014, 20th Century Fox presented footage from the film at CinemaCon.{{cite web|url=http://www.superherohype.com/news/296707-cinemacon-fox-shows-new-x-men-apes-and-secret-service-footage|title=CinemaCon: Fox Shows New X-Men, Apes and Secret Service Footage|date=March 27, 2014|access-date=March 28, 2014|first=Edward|last=Douglas|archive-date=March 30, 2014|archive-url=https://web.archive.org/web/20140330062044/http://www.superherohype.com/news/296707-cinemacon-fox-shows-new-x-men-apes-and-secret-service-footage|url-status=live}} In April 2014, Page presented footage from the film at the 2014 MTV Movie Awards. Kinberg and Dinklage attended WonderCon to discuss the film.{{cite web |last=Perry |first=Spencer |url=http://www.superherohype.com/news/298157-sneak-peek-for-x-men-days-of-future-past-clip-debuts/ |title=Sneak Peek for X-Men: Days of Future Past Clip Debuts |work=SuperHeroHype |date=April 9, 2014 |access-date=May 3, 2014 |archive-date=May 15, 2014 |archive-url=https://web.archive.org/web/20140515232023/http://www.superherohype.com/news/298157-sneak-peek-for-x-men-days-of-future-past-clip-debuts |url-status=live }}{{cite web |url=https://www.hollywoodreporter.com/heat-vision/wondercon-no-mention-bryan-singer-697716 |title=WonderCon: No Mention of Bryan Singer at X-Men Panel |date=April 19, 2014 |access-date=April 20, 2014 |first=Borys |last=Kit |website=The Hollywood Reporter |archive-date=April 22, 2014 |archive-url=https://web.archive.org/web/20140422002508/http://www.hollywoodreporter.com/heat-vision/wondercon-no-mention-bryan-singer-697716 |url-status=live }} Singer withdrew from the publicity rounds for the film because of a lawsuit alleging sexual abuse filed against him.{{cite web| url=http://www.news.com.au/entertainment/movies/x-men-director-bryan-singer-to-miss-films-launch-amid-sex-abuse-allegations/story-e6frfmvr-1226896464067| title=Bryan Singer pulls out of X-Men launch amid sex abuse allegations| work=News.com.au| date=April 26, 2014| access-date=May 3, 2014| archive-date=April 28, 2014| archive-url=https://web.archive.org/web/20140428135151/http://www.news.com.au/entertainment/movies/x-men-director-bryan-singer-to-miss-films-launch-amid-sex-abuse-allegations/story-e6frfmvr-1226896464067| url-status=dead}} In July 2014, 20th Century Fox and Oculus Rift presented a "virtual reality experience" at the 2014 San Diego Comic-Con. Attendees were given a chance to sit in a replica of Professor X's wheelchair and virtually hunt Mystique in the San Diego Convention Center.{{cite web |url=https://www.comingsoon.net/news/movienews.php?id=120876 |archive-url=https://archive.today/20140727043928/http://www.comingsoon.net/news/movienews.php?id=120876 |url-status=dead |archive-date=July 27, 2014 |title=Comic-Con: Hunt Down Mystique in the X-Men Virtual Reality Experience |date=July 22, 2014 |access-date=July 25, 2014 }}

In July 2013, a mid-credits scene teasing X-Men: Days of Future Past was attached to the theatrical release of The Wolverine.{{cite web|url=http://www.superherohype.com/news/articles/178151-exclusive-hugh-jackman-on-x-men-days-of-future-past|title=Exclusive: Hugh Jackman on X-Men: Days of Future Past|first=Edward|last=Douglas|date=July 17, 2013|access-date=July 18, 2013|archive-date=July 20, 2013|archive-url=https://web.archive.org/web/20130720005602/http://www.superherohype.com/news/articles/178151-exclusive-hugh-jackman-on-x-men-days-of-future-past|url-status=live}} The scene, set two years after the events of The Wolverine, depicts Wolverine going through an airport security checkpoint while a commercial for Trask Industries plays in the background. Suddenly, Wolverine notices that all the metal objects around him start to shake and levitate. He turns around to see Magneto, who says he needs Wolverine's help to combat a threat to all mutants. When Wolverine asks Magneto why he should trust him, the people around them freeze as Xavier approaches Wolverine and assures him that Magneto is telling the truth. Adam Pockross of Yahoo! Movies described the mid-credits scene as the coolest part of The Wolverine and wrote, "Boom! And that's how you tease the next film: by giving us so much to chew on, yet so few answers".{{cite web|url=https://movies.yahoo.com/blogs/movie-talk/wolverine-post-credits-scene-perfectly-sets-next-x-160949633.html|title=Wolverine Post-Credits Sequence Opens Door For Next X-Men Film|first=Adam|last=Pockross|date=July 29, 2013|access-date=October 5, 2013|archive-date=August 1, 2013|archive-url=https://web.archive.org/web/20130801212038/http://movies.yahoo.com/blogs/movie-talk/wolverine-post-credits-scene-perfectly-sets-next-x-160949633.html|url-status=live}}

The first official trailer for X-Men: Days of Future Past was released in October 2013.{{cite web|url=http://www.gmanetwork.com/news/story/333262/scitech/gaming/x-men-days-of-future-past-official-trailer-goes-live |title=X-Men: Days of Future Past official trailer goes live |first=Mikael Angelo |last=Francisco|date=October 30, 2013|access-date=November 1, 2013}} Jason Callina of New Jersey's Herald News gave the trailer a positive response, saying, "it is fantastic to see characters that I grew up with in the flesh ... we still have to wait till the end of May to see if Fox succeeded, but for now they have my interest".{{cite web| url=http://www.heraldnews.com/blogs/seriousplay/x703369247/X-Men-Days-of-Future-Past-Trailer| archive-url=https://archive.today/20131101073951/http://www.heraldnews.com/blogs/seriousplay/x703369247/X-Men-Days-of-Future-Past-Trailer| url-status=dead| archive-date=November 1, 2013| title=X-Men Days of Future Past Trailer| date=October 29, 2013| access-date=November 1, 2013|first=Jason |last=Callina}} Ben Child of The Guardian criticized the trailer for the number of characters that would appear in the film. Child wrote, "overloading the movie with superheroes might please fans of the comic books, but the rest of us will be chewing on our own spleens when the umpteenth brightly coloured dude turns up to spout one line of dialogue, then drop off the map".{{cite web|url=https://www.theguardian.com/film/2013/oct/31/x-men-days-of-future-past-trailer |title=X-Men: Days of Future Past trailer: an overdose of superheroes?|date=October 31, 2013|access-date=November 1, 2013|first=Ben|last= Child | work=The Guardian |location =UK}}

A mid-credits scene teasing X-Men: Days of Future Past was attached to the theatrical release of The Amazing Spider-Man 2 in April 2014. In the scene, which is set during the Vietnam War, Mystique tries to infiltrate a military camp led by William Stryker to recruit fellow mutants Havok, Ink, and Toad. The Amazing Spider-Man 2 director Marc Webb had an existing contract with Fox Searchlight Pictures to direct another film following 500 Days of Summer (2009). After The Amazing Spider-Man, Webb's negotiations with Sony Pictures Entertainment stalled because of his commitment to Fox. Fox eventually agreed to allow Webb to direct the sequel of The Amazing Spider-Man, and in exchange, Sony promoted the X-Men film without charge.{{cite web|url=https://variety.com/2014/film/news/the-secret-deal-behind-spider-man-2-plugging-the-x-men-exclusive-1201158216/|title=The Amazing Spider-Man 2: Secret Contract Got X-Men Coda in Film|date=April 16, 2014|access-date=April 18, 2014|last=Setoodeh|first=Ramin|archive-date=April 17, 2014|archive-url=https://web.archive.org/web/20140417202314/http://variety.com/2014/film/news/the-secret-deal-behind-spider-man-2-plugging-the-x-men-exclusive-1201158216/|url-status=live}} In addition, three viral websites were launched before the release of the film—Trask-Industries.com in July 2013, TheBentBullet.com in November 2013 and 25Moments.com in April 2014.{{cite news |url=http://www.superherohype.com/news/articles/178201-comic-con-x-men-days-of-future-viral-campaign-kicks-off |title=Comic-Con: X-Men: Days of Future Past Viral Campaign Kicks Off! |first=Spencer |last=Perry |newspaper=Comic Book Movies and Superhero Movie News - Superherohype |date=July 18, 2013 |access-date=July 19, 2013 |archive-date=July 21, 2013 |archive-url=https://web.archive.org/web/20130721152213/http://www.superherohype.com/news/articles/178201-comic-con-x-men-days-of-future-viral-campaign-kicks-off |url-status=live }}{{cite web|url=http://www.superherohype.com/news/articles/180503-x-men-days-of-future-past-explores-magnetos-involvement-in-the-jfk-assassination|title=X-Men: Days of Future Past Explores Magneto's Involvement in the JFK Assassination|first=Silas|last=Lesnick|date=November 25, 2013|access-date=November 26, 2013|archive-date=November 27, 2013|archive-url=https://web.archive.org/web/20131127121824/http://www.superherohype.com/news/articles/180503-x-men-days-of-future-past-explores-magnetos-involvement-in-the-jfk-assassination|url-status=live}}{{cite web|url=http://www.superherohype.com/news/298611-an-x-men-days-of-future-past-interactive-timeline-explores-future-history#/slide/1|title=An X-Men: Days of Future Interactive Timeline Explores Future History|work=Superhero Hype|date=April 11, 2014|access-date=April 11, 2014|archive-date=April 14, 2014|archive-url=https://web.archive.org/web/20140414003948/http://www.superherohype.com/news/298611-an-x-men-days-of-future-past-interactive-timeline-explores-future-history#/slide/1|url-status=live}} To further promote the film, Jackman made a guest appearance on the April 28, 2014, episode of WWE Raw.{{cite web |url=http://www.wwe.com/videos/raw-guest-star-hugh-jackman-is-confronted-by-magneto-raw-april-28-2014-26270969 |title=Raw guest star Hugh Jackman is confronted by "Magneto": Raw, April 28, 2014 |publisher=WWE |date=April 28, 2014 |access-date=April 29, 2014 |archive-date=April 30, 2014 |archive-url=https://web.archive.org/web/20140430170956/http://www.wwe.com/videos/raw-guest-star-hugh-jackman-is-confronted-by-magneto-raw-april-28-2014-26270969 |url-status=dead }}{{cite news |url=https://www.washingtonpost.com/blogs/early-lead/wp/2014/04/28/x-men-star-hugh-jackman-will-probably-punch-someone-on-wwe-raw-tonight/ |title=X-Men star Hugh Jackman will probably punch someone on WWE Raw tonight |first=Marissa |last=Payne |newspaper=The Washington Post |date=April 28, 2014 |access-date=April 29, 2014 |archive-date=April 29, 2014 |archive-url=https://web.archive.org/web/20140429014857/http://www.washingtonpost.com/blogs/early-lead/wp/2014/04/28/x-men-star-hugh-jackman-will-probably-punch-someone-on-wwe-raw-tonight/ |url-status=live }} The segment received mixed reactions.{{cite news |url=https://www.washingtonpost.com/blogs/early-lead/wp/2014/04/29/you-either-loved-or-hated-hugh-jackman-on-wwe-raw/ |title=You either loved or hated Hugh Jackman on WWE Raw |first=Marissa |last=Payne |newspaper=The Washington Post |date=April 29, 2014 |access-date=April 30, 2014 |archive-date=April 30, 2014 |archive-url=https://web.archive.org/web/20140430001622/http://www.washingtonpost.com/blogs/early-lead/wp/2014/04/29/you-either-loved-or-hated-hugh-jackman-on-wwe-raw/ |url-status=live }}

In April 2014, just one month before the film's release date, director Bryan Singer was accused in a civil lawsuit of sexual assault of a minor. According to the suit filed by attorney Jeff Herman, Singer was alleged to have drugged and raped actor and model Michael Egan in Hawaii after meeting him at parties hosted by convicted sex offender Marc Collins-Rector in the late 1990s.{{cite news|last=Barnes|first=Brook|title=Suit Accuses Director of New X-Men Film of Sexual Assault|url=https://www.nytimes.com/2014/04/18/business/media/in-lawsuit-director-of-new-x-men-film-is-accused-of-sexual-assault.html|newspaper=The New York Times|date=April 17, 2014|access-date=April 17, 2014|archive-date=September 15, 2018|archive-url=https://web.archive.org/web/20180915225958/https://www.nytimes.com/2014/04/18/business/media/in-lawsuit-director-of-new-x-men-film-is-accused-of-sexual-assault.html|url-status=live}} Singer's attorney called the allegations "completely fabricated" and said Singer planned to countersue.{{cite news|url=https://www.reuters.com/article/usa-singer-abuse-idUSL2N0N919E20140418|title=X-Men director hit by sex abuse lawsuit weeks before premiere|first1=Dana|last1=Feldman|first2=Eric|last2=Kelsey|work=Reuters|date=April 17, 2014|access-date=April 18, 2014|archive-date=September 24, 2015|archive-url=https://web.archive.org/web/20150924195950/http://www.reuters.com/article/2014/04/18/usa-singer-abuse-idUSL2N0N919E20140418|url-status=live}} Singer denied the allegations in a statement, calling them "outrageous, vicious, and completely false."{{cite web|magazine=TIME|url=https://time.com/77224/bryan-singer-sexual-abuse-allegations/|title=X-Men Director Singer: Sexual Abuse Allegations 'Outrageous'|date=April 25, 2014|access-date=June 27, 2014}} As a result, Singer withdrew from the publicity rounds for the film because of the sexual abuse lawsuit filed against him. On May 22, 2014, just a day before the film's release date, Singer's attorney presented evidence to Federal District Judge Susan Oki Mollway stating that neither Singer nor Egan were in Hawaii at the time.Detroit Free Press, Saturday, May 24, 2014, pg. 2D In early August 2014, Egan sought to withdraw his lawsuit via a Request for Court Order of Dismissal, and asked that it be granted "without prejudice or an award of costs or fees, in the interest of justice."{{Cite news|url=http://www.nydailynews.com/entertainment/gossip/bryan-singer-accuser-seeks-withdraw-lawsuit-director-article-1.1894129|title=Bryan Singer accuser seeks to withdraw lawsuit against director|last=Dillon|first=Nancy|date=August 6, 2014|newspaper=New York Daily News|access-date=March 14, 2018|archive-url=https://web.archive.org/web/20150612034812/http://www.nydailynews.com/entertainment/gossip/bryan-singer-accuser-seeks-withdraw-lawsuit-director-article-1.1894129|archive-date=June 12, 2015|url-status=live}}

In May 2014, another lawsuit was filed by Herman on behalf of an anonymous British man. Both Singer and producer Gary Goddard (who was also named separately in the first case) were accused of sexually assaulting "John Doe No. 117."{{Cite news|url=https://time.com/88234/bryan-singer-hollywood-scandal/|title=What The Bryan Singer Scandal Says About Hollywood|last=Pickert|first=Kate|date=May 5, 2014|newspaper=Time|archive-url=https://web.archive.org/web/20171207064141/http://time.com/88234/bryan-singer-hollywood-scandal|archive-date=December 7, 2017|url-status=live|access-date=March 14, 2018}} According to the lawsuit, Goddard and Singer met the man for sex when he was a minor and engaged in acts of "gender violence" against him while in London for the premiere of Superman Returns.{{cite web|last=Paunescu|first=Delia|title=New Sexual-Abuse Lawsuit Filed Against Singer|date=May 4, 2014|website=Vulture|url=https://www.vulture.com/2014/05/new-sexual-abuse-lawsuit-filed-against-singer.html|access-date=May 26, 2014}} The charge against Singer in this case was dismissed, at the accuser's request, in July 2014.{{cite news|url=http://www.nydailynews.com/entertainment/gossip/bryan-singer-dropped-sex-abuse-case-brought-british-actor-article-1.1880661|title=X-Men director Bryan Singer dropped from sex abuse case brought by British actor|newspaper=Daily News|access-date=January 13, 2015|archive-date=September 15, 2018|archive-url=https://web.archive.org/web/20180915225606/http://www.nydailynews.com/entertainment/gossip/bryan-singer-dropped-sex-abuse-case-brought-british-actor-article-1.1880661|url-status=live}}

Singer's controversies were later cited in the 2014 documentary film on child sexual abuse in Hollywood, An Open Secret, but details of Egan's allegations were omitted after Egan withdrew his lawsuit during the film's production.{{cite news|url=https://variety.com/2014/film/news/bryan-singer-allegations-part-of-upcoming-sex-abuse-documentary-from-oscar-nominated-filmmaker-1201159632|title=Bryan Singer Allegations Part of Upcoming Sex Abuse Documentary|newspaper=Variety|date=April 18, 2014|first=Ramin|last=Setoodeh|archive-date=December 29, 2017|access-date=November 13, 2020|archive-url=https://web.archive.org/web/20171229160154/http://variety.com/2014/film/news/bryan-singer-allegations-part-of-upcoming-sex-abuse-documentary-from-oscar-nominated-filmmaker-1201159632/|url-status=live}}{{cite web|first=John|last=DeFore|access-date=January 24, 2019|title=An Open Secret: Film Review|url=https://www.hollywoodreporter.com/review/an-open-secret-film-review-749444|website=The Hollywood Reporter|date=November 14, 2014|archive-date=July 28, 2020|archive-url=https://web.archive.org/web/20200728034713/https://www.hollywoodreporter.com/review/an-open-secret-film-review-749444|url-status=live}} Author Bret Easton Ellis alleged that two of his former partners had attended underage sex parties hosted by Singer and fellow director Roland Emmerich.{{cite news|url=https://www.hollywoodreporter.com/news/bryan-singer-sex-abuse-suit-699673|title=Bryan Singer Sex Abuse Suit: Bret Easton Ellis Says He Dated Two People Who 'Went Through World of Underage Parties' (Audio)|newspaper=The Hollywood Reporter|date=April 29, 2014|archive-date=September 15, 2018|access-date=November 13, 2020|archive-url=https://web.archive.org/web/20180915225851/https://www.hollywoodreporter.com/news/bryan-singer-sex-abuse-suit-699673|url-status=live}}

In July 2013, CKE Restaurants and 20th Century Fox announced a promotional partnership for the theatrical release of X-Men: Days of Future Past. The promotion included advertising, in-restaurant merchandising, collectors' cups, and a film-themed burger, the Western "X-Tra" Bacon Thickburger,{{cite web|url=https://finance.yahoo.com/news/carl-jr-hardee-fight-x-141200616.html;_ylt=A0LEVyLv2jpTP0sAbQtXNyoA;_ylu=X3oDMTE0Ymo0dnJuBHNlYwNzcgRwb3MDMTAEY29sbwNiZjEEdnRpZANWSVAzODVfMQ--|title=Carl's Jr. and Hardee's Fight X-Traordinary Hunger with Help from X-Men and X-Tra Bacon |date=March 18, 2014|access-date=April 1, 2014}} sold at CKE Restaurants outlets Hardee's and Carl's Jr. Zachary Eller, senior vice president of marketing partnerships & promotions at 20th Century Fox, said, "their fun and irreverent advertising campaigns are a great fit with our film and we couldn't be more thrilled to join together to feed mutants everywhere!"{{cite web|url=http://www.superherohype.com/news/articles/178299-comic-con-x-men-days-of-future-past-partners-with-carls-jr-and-hardees|title=Comic-Con: X-Men: Days of Future Past Partners with Carl's Jr. and Hardee's|date=July 20, 2013|access-date=July 21, 2013|first=Spencer|last=Perry|archive-date=July 26, 2013|archive-url=https://web.archive.org/web/20130726192000/http://www.superherohype.com/news/articles/178299-comic-con-x-men-days-of-future-past-partners-with-carls-jr-and-hardees|url-status=live}}

Mountain Dew partnered with the film to promote it globally; the promotion included prizes, a television commercial, online exclusives, in-store and in-theater advertisements, and commemorative packaging featuring X-Men characters from future and past. Anna Roca, senior vice president of international promotions at 20th Century Fox, stated, "The adventurous, energetic attitude of [Mountain Dew's] fan base mirrors the franchise's own—and their international reach helps bring our beloved mutants to more corners of the world than ever before".{{cite web| url=http://x-menfilms.com/2014/03/17/x-men-days-of-future-past-teams-up-with-mountain-dew-for-promotion/| title=X-Men: Days of Future Past teams up with Mountain Dew for promotion| date=March 17, 2014| access-date=March 18, 2014| archive-url=https://web.archive.org/web/20140318002938/http://x-menfilms.com/2014/03/17/x-men-days-of-future-past-teams-up-with-mountain-dew-for-promotion/| archive-date=March 18, 2014| url-status=dead| df=mdy-all}}

In March 2014, British train operator Virgin Trains West Coast revinyled a Class 390 Pendolino train, featuring the film characters on the carriages. It was launched at London Euston station with Hugh Jackman and James McAvoy attending the launch.{{cite web|url=https://uk.movies.yahoo.com/jackman-mcavoy-x-men-train-124835463.html|title=Jackman, McAvoy name X-Men train|access-date=April 1, 2013|date=April 1, 2013|archive-date=February 3, 2016|archive-url=https://web.archive.org/web/20160203172308/https://uk.movies.yahoo.com/jackman-mcavoy-x-men-train-124835463.html|url-status=live}}[https://www.railmagazine.com/trains/current-trains/meet-the-x-mendolino Meet the X-Mendolino] {{Webarchive|url=https://web.archive.org/web/20160530145702/http://www.railmagazine.com/trains/current-trains/meet-the-x-mendolino |date=May 30, 2016 }} Rail April 30, 2014 Three months later, Wolverhampton station changed its name to "Wolverine station" for one day.{{cite web |url=https://www.itv.com/news/central/story/2014-04-01/wolverhampton-station-renamed-wolverine/ |title=Wolverhampton station renamed 'Wolverine' for the day |work=ITV News |date=April 1, 2014 |access-date=January 4, 2024 |archive-date=December 2, 2023 |archive-url=https://web.archive.org/web/20231202175811/https://www.itv.com/news/central/story/2014-04-01/wolverhampton-station-renamed-wolverine/ |url-status=live }}

Kia Motors collaborated with 20th Century Fox to promote the home media release of the film with a Wolverine-themed Sorento. The SUV made its debut at the 2015 Australian Open, with a series of videos featuring Rafael Nadal teaming up with the X-Men to save the tennis event from the Sentinels.{{cite web |url=http://www.autoblog.com/2014/11/24/kia-sorento-xmen-edition-official/ |title=Kia Sorento bares its claws for X-Men Special Edition |first=Noah |last=Joseph |work=Autoblog.com |date=November 24, 2014 |access-date=September 28, 2015 |archive-date=November 26, 2014 |archive-url=https://web.archive.org/web/20141126152157/http://www.autoblog.com/2014/11/24/kia-sorento-xmen-edition-official/ |url-status=live }}

In June 2014, cable network FX acquired the television rights to X-Men: Days of Future Past.{{cite web |url=https://deadline.com/2014/06/fx-acquires-22-jump-street-fault-in-our-stars-x-men-days-of-future-past-dragon-2-more-793136/ |title=FX Acquires '22 Jump Street, Fault in Our Stars, X-Men: Days of Future Past, Dragon 2 & More |date=June 19, 2014 |access-date=June 22, 2014 |archive-date=September 23, 2014 |archive-url=https://web.archive.org/web/20140923094111/http://deadline.com/2014/06/fx-acquires-22-jump-street-fault-in-our-stars-x-men-days-of-future-past-dragon-2-more-793136/ |url-status=live }} The film was released by 20th Century Fox Home Entertainment on digital download on September 23, 2014, and on DVD, Blu-ray and Blu-ray 3D on October 14, 2014.{{cite web |url=http://www.superherohype.com/news/309607-x-men-days-of-future-past-hitting-dvd-and-blu-ray-in-october |title=X-Men: Days of Future Past Hitting DVD and Blu-ray in October |date=July 23, 2014 |access-date=August 5, 2014 |first=Spencer |last=Perry |archive-date=July 27, 2014 |archive-url=https://web.archive.org/web/20140727203304/http://www.superherohype.com/news/309607-x-men-days-of-future-past-hitting-dvd-and-blu-ray-in-october |url-status=live }} In the United Kingdom, it was released on November 10, 2014.{{cite web |url=https://www.amazon.co.uk/X-Men-Complete-Collection-Exclusive-Amazon-co-uk/dp/B00KF8F6PG |title=X-Men: Cerebro Helmet Complete Collection Incl. Days of Future Past Exclusive to Amazon.co.uk |website=Amazon UK |access-date=August 5, 2014 |archive-date=August 22, 2014 |archive-url=https://web.archive.org/web/20140822165849/http://www.amazon.co.uk/X-Men-Complete-Collection-Exclusive-Amazon-co-uk/dp/B00KF8F6PG |url-status=live }} Three versions were released; a Deluxe Edition containing the Blu-ray 3D, Blu-ray and digital download; a Blu-ray and digital download combo pack; and a single-disc DVD.

20th Century Fox Home Entertainment released an alternate version of the film, titled The Rogue Cut, on July 14, 2015. It added 17 minutes of previously unused footage, including a subplot involving Anna Paquin's character Rogue, whose role was reduced to a brief cameo in the theatrical release.{{cite web|url= http://www.superherohype.com/news/339801-bryan-singer-reveals-x-men-days-of-future-past-rogue-cut-release-date|title=Bryan Singer Reveals X-Men: Days of Future Past Rogue Cut Release Date |last=Evry|first=Max |date=May 5, 2015 | work=SuperheroHype.com|access-date=May 6, 2015|archive-url=https://web.archive.org/web/20240210163556/https://www.superherohype.com/news/339801-bryan-singer-reveals-x-men-days-of-future-past-rogue-cut-release-date|archive-date=February 10, 2024}} The Rogue Cut was also screened at the 2015 San Diego Comic-Con.{{cite web|url=http://www.ramascreen.com/there-will-be-x-men-days-of-future-past-rogue-cut-screening-at-san-diego-comic-con-heres-details/|title=There Will Be "X-Men: Days of Future Past Rogue Cut" Screening at San Diego Comic-Con! Here's Details!|work=Rama's Screen|date=June 22, 2015|archive-url=https://web.archive.org/web/20240210164123/https://www.ramascreen.com/there-will-be-x-men-days-of-future-past-rogue-cut-screening-at-san-diego-comic-con-heres-details/|archive-date=February 10, 2024}}

In the Rogue Cut, Rogue's role is more consequential, and the narrative is more complex: when Kitty Pryde (revealed to be dating Iceman in this version of events) is accidentally wounded after Wolverine's consciousness experiences a phase between past and future from seeing Stryker in 1973, Iceman proposes breaking into the heavily guarded remains of Cerebro at the former X-Mansion, the one place where Xavier's mind cannot reach others from the outside, to rescue Rogue, who is being held captive there. Xavier, Magneto, and Iceman succeed in rescuing Rogue, but at the cost of Iceman's life (rather than Iceman being killed by the Sentinels during the final confrontation at the temple along with the other 2023 mutants). Rogue uses her power to take over for Kitty in regards to keeping Wolverine's mind in 1973, for the remaining time until the moment history is changed, with a suggestion that Wolverine is aware of the switch as he appears to feel Rogue's presence. Instead of simply appearing, the Sentinels find the X-Men through a tracking device inside a Sentinel's hand that was severed from the X-Jet during their escape. In another major scene, Mystique stops at the X-Mansion the night before the Sentinel-unveiling ceremony, nearly rekindles her previous romance with Beast, and destroys Cerebro the following morning to prevent Xavier from finding her. A new mid-credits scene shows Bolivar Trask imprisoned at Magneto's former prison cell beneath the Pentagon for selling military secrets to foreign countries.

File:Fan BingBing and Hugh Jackman - 2014 (14184759884) (cropped).jpg and Fan Bingbing at the film's premiere Singapore]]

Worldwide, X-Men: Days of Future Past earned $262.8 million during its opening weekend, the highest worldwide opening weekend for an X-Men film.{{cite web |url=https://boxofficemojo.com/alltime/world/worldwideopenings.htm |title=All Time Worldwide Opening Record at the Box Office |work=Box Office Mojo |access-date=August 29, 2014 |archive-date=June 23, 2011 |archive-url=https://web.archive.org/web/20110623165250/http://www.boxofficemojo.com/alltime/world/worldwideopenings.htm |url-status=live }} The film grossed $233.9 million in the US and Canada, and $512.1 million in other markets, for a worldwide gross of $747.9 million, making it the highest-grossing entry in the X-Men film series before being surpassed by Deadpool two years later. Deadline Hollywood calculated the net profit of the film to be $77.3 million, accounting for production budgets, P&A, talent participations, and other costs, with box office grosses, and ancillary revenues from home media, placing it sixteenth on their list of 2014's "Most Valuable Blockbusters".{{cite news|url=https://deadline.com/2015/03/x-men-days-of-future-past-profit-box-office-2014-1201389620/|title=No. 16 X-Men: Days Of Future Past – 2014 Most Valuable Blockbuster Movie Tournament|last=Fleming|first=Mike Jr.|work=Deadline Hollywood|date=March 10, 2015|access-date=February 17, 2019|archive-date=June 30, 2023|archive-url=https://web.archive.org/web/20230630221420/https://deadline.com/2015/03/x-men-days-of-future-past-profit-box-office-2014-1201389620/|url-status=live}}

In the United States and Canada, the film earned $8.1 million from Thursday night showings, which was the highest late-night opening for an X-Men film.{{cite web |url=https://www.cinemablend.com/new/X-Men-Days-Future-Past-Banks-8-1-Million-Through-Late-Thursday-Showings-43154.html |title=X-Men: Days Of Future Past Banks $8.1 Million Through Late Thursday Showings |first=Mike |last=Reyes |date=May 23, 2014 |access-date=August 1, 2014 |archive-date=May 25, 2014 |archive-url=https://web.archive.org/web/20140525215316/http://www.cinemablend.com/new/X-Men-Days-Future-Past-Banks-8-1-Million-Through-Late-Thursday-Showings-43154.html |url-status=live }} It was also the highest-grossing film during its opening weekend, earning $90.8 million, which made it the second-highest opening weekend of the series, at the time, behind X-Men: The Last Stand ($102.7 million). The film also had the third-highest opening weekend for a 20th Century Fox film, after the latter film and Star Wars: Episode III – Revenge of the Sith ($108.4 million).{{cite web|url=https://www.forbes.com/sites/scottmendelson/2017/03/06/logan-box-office-just-how-huge-was-wolverines-88m-debut-weekend/|title=Box Office: 'Logan' Is Even Bigger Than We Thought, With An $88M U.S. And $247M Worldwide Debut|author=Scott Mendelson|work=Forbes|date=March 6, 2017|access-date=March 6, 2017|archive-date=March 6, 2017|archive-url=https://web.archive.org/web/20170306213206/https://www.forbes.com/sites/scottmendelson/2017/03/06/logan-box-office-just-how-huge-was-wolverines-88m-debut-weekend/|url-status=live}} During the four-day Memorial Day weekend, it earned $110.6 million.{{cite web |url=https://boxofficemojo.com/news/?id=3848&p=.htm |title=Weekend Report: X-Men Rules Memorial Day, Falls Short of Franchise Record |work=Box Office Mojo |date=May 25, 2014 |access-date=May 27, 2014 |archive-date=May 27, 2014 |archive-url=https://web.archive.org/web/20140527203046/http://www.boxofficemojo.com/news/?id=3848&p=.htm |url-status=live }} The audience was 56% male and 59% were older than 25.

Elsewhere, the film was the highest-grossing film during its opening weekend, taking $172 million, making it Fox International's highest opening weekend, beating the previous record held by Avatar ($164 million).{{cite web |url=http://www.boxoffice.com/news/2014-05-25-global-x-men-days-of-future-past-breaks-avatar-record-as-foxs-biggest-overseas-debut-of-all-time |title=GLOBAL: X-Men: Days Of Future Past Breaks Avatar Record As Fox International's Biggest Overseas Debut Of All Time |date=May 25, 2014 |access-date=July 6, 2014 |url-status=dead |archive-url=https://web.archive.org/web/20140601163622/http://www.boxoffice.com/news/2014-05-25-global-x-men-days-of-future-past-breaks-avatar-record-as-foxs-biggest-overseas-debut-of-all-time |archive-date=June 1, 2014}} The film's highest-grossing debuts were in China, Ireland, Malta, South Korea and the United Kingdom.{{cite web|url=https://www.boxofficemojo.com/movies/?page=intl&id=xmen2014.htm|title=X-Men: Days of Future Past (2014)—International Box Office Results|work=Box Office Mojo|access-date=June 17, 2014|archive-date=June 20, 2014|archive-url=https://web.archive.org/web/20140620110509/http://boxofficemojo.com/movies/?page=intl&id=xmen2014.htm|url-status=live}} It was also the highest-grossing debut for a 20th Century Fox film in 11 markets, including South Korea, Brazil, the Philippines and India. It became the highest-grossing X-Men film in Argentina, Australia, Austria, Belgium, Brazil, China, Colombia, Croatia, Czech Republic, Denmark, Ecuador, Egypt, Finland, France, Hong Kong, Hungary, India, Ireland, Israel, Italy, Lebanon, Malaysia, Mexico, the Netherlands, New Zealand, Norway, the Philippines, Poland, Singapore, Slovakia, South Korea, Sweden, Thailand, the United Kingdom and Venezuela.{{efn|Attributed to multiple references:{{cite web |url=https://boxofficemojo.com/movies/?page=intl&id=xmen.htm |title=X-Men (2000)—International Box Office Results |work=Box Office Mojo |access-date=July 6, 2014 |archive-date=July 1, 2014 |archive-url=https://web.archive.org/web/20140701023849/http://www.boxofficemojo.com/movies/?page=intl&id=xmen.htm |url-status=live }}{{cite web|url=https://boxofficemojo.com/movies/?page=intl&id=x2.htm |title=X2: X-Men United (2003)—International Box Office Results |work=Box Office Mojo |access-date=July 6, 2014}}{{cite web |url=https://boxofficemojo.com/movies/?page=intl&id=x3.htm |title=X-Men: The Last Stand (2006)—International Box Office Results |work=Box Office Mojo |access-date=July 6, 2014 |archive-date=July 9, 2014 |archive-url=https://web.archive.org/web/20140709160426/http://boxofficemojo.com/movies/?page=intl&id=x3.htm |url-status=live }}{{cite web |url=https://boxofficemojo.com/movies/?page=intl&id=wolverine.htm |title=X-Men: Origins Wolverine (2009)—International Box Office Results |work=Box Office Mojo |access-date=July 6, 2014 |archive-date=October 9, 2014 |archive-url=https://web.archive.org/web/20141009223210/http://www.boxofficemojo.com/movies/?page=intl&id=wolverine.htm |url-status=live }}{{cite web |url=https://boxofficemojo.com/movies/?page=intl&id=xmenfirstclass.htm |title=X-Men: First Class (2011)—International Box Office Results |work=Box Office Mojo |access-date=July 6, 2014 |archive-date=July 14, 2014 |archive-url=https://web.archive.org/web/20140714001935/http://www.boxofficemojo.com/movies/?page=intl&id=xmenfirstclass.htm |url-status=live }}{{cite web |url=https://boxofficemojo.com/movies/?page=intl&id=wolverine2.htm |title=The Wolverine (2013)—International Box Office Results |work=Box Office Mojo |access-date=July 6, 2014 |archive-date=July 15, 2014 |archive-url=https://web.archive.org/web/20140715105437/http://boxofficemojo.com/movies/?page=intl&id=wolverine2.htm |url-status=live }}}}

On review aggregator Rotten Tomatoes, X-Men: Days of Future Past holds an approval rating of {{RT data|score}} based on {{RT data|count}} reviews, with an average rating of {{RT data|average}}. The website's critical consensus reads, "X-Men: Days of Future Past combines the best elements of the series to produce a satisfyingly fast-paced outing that ranks among the franchise's finest installments."{{Cite Rotten Tomatoes |id={{RT data|rtid|noprefix=y}} |type=m |title=X-Men: Days of Future Past |access-date={{RT data|access date}}}}{{RT data|edit}} On Metacritic, the film has a weighted average score of 75 out of 100, based on 44 critics, indicating "generally favorable reviews".{{cite Metacritic|id=x-men-days-of-future-past |type=movie |title=X-Men: Days of Future Past |access-date=February 19, 2021}} Audiences polled by CinemaScore gave the film an average grade of "A" on an A+ to F scale.

Sean O'Connell of CinemaBlend gave the film four and a half stars out of five, and said it was "the greatest, most complete and staggeringly entertaining [X-Men film] to date".{{cite news|first=Sean|last=O'Connell|url=https://www.cinemablend.com/reviews/X-Men-Days-of-Future-Past-6836.html|title=X-Men: Days of Future Past Review|access-date=July 4, 2014|work=CinemaBlend|archive-date=July 27, 2020|archive-url=https://web.archive.org/web/20200727000854/https://www.cinemablend.com/reviews/X-Men-Days-of-Future-Past-6836.html|url-status=dead}} Empire gave it four out of five stars and called it, "The best X-Men film since the second one".{{cite news|first=William|last=Thomas|url=https://www.empireonline.com/reviews/reviewcomplete.asp?FID=138033|title=Empire's X-Men: Days of Future Past Movie Review|access-date=June 14, 2014|work=Empire|archive-date=July 12, 2014|archive-url=https://web.archive.org/web/20140712015334/http://www.empireonline.com/reviews/reviewcomplete.asp?FID=138033|url-status=live}} Steve Rose of The Guardian rated the film three stars out of five; he said, "Non-devotees might struggle, but director Bryan Singer whips up the action towards a symphonic climax".{{cite web |first=Steve |last=Rose |url=https://www.theguardian.com/film/2014/may/13/x-men-days-of-future-past-review |title=X-Men: Days of Future Past review - 'like trying to follow two games of chess at once' | Film |work=The Guardian |date=May 13, 2014 |location=UK |access-date=May 20, 2014 |archive-date=March 11, 2023 |archive-url=https://web.archive.org/web/20230311202310/https://www.theguardian.com/film/2014/may/13/x-men-days-of-future-past-review |url-status=live }} David Rooney of The Hollywood Reporter said, "While it's more dramatically diffuse than the reboot and lacks a definitive villain, the new film is shot through with a stirring reverence for the Marvel Comics characters and their universe".{{cite web |first=David |last=Rooney |url=https://www.hollywoodreporter.com/movie/x-men-days-future-past/review/703209 |title=X-Men: Days of Future Past (2014) |work=The Hollywood Reporter |date=May 12, 2014 |access-date=May 21, 2014 |archive-date=May 15, 2014 |archive-url=https://web.archive.org/web/20140515010658/http://www.hollywoodreporter.com/movie/x-men-days-future-past/review/703209 |url-status=live }} Justin Chang of Variety said, "If the characters' quandaries at times feel overly circumscribed, they're also advanced with a bracing emotional directness, devoid of either cynicism or sentimentalism, that touches genuine chords of feeling over the course of the film's fleet 130-minute [sic] running time".{{cite web|url=https://variety.com/2014/film/reviews/film-review-x-men-days-of-future-past-1201177971/ |title=Film Review: X-Men: Days of Future Past |date=May 12, 2014|access-date=August 2, 2014|last=Chang|first= Justin| work=Variety |archive-date= August 11, 2014 | archive-url= https://web.archive.org/web/20140811131431/http://variety.com/2014/film/reviews/film-review-x-men-days-of-future-past-1201177971/| url-status=live}} In 2016, James Charisma of Playboy ranked the film #8 on a list of "15 Sequels That Are Way Better Than The Originals".{{cite web | title = Revenge of the Movie: 15 Sequels That Are Way Better Than The Originals | work = Playboy | url = http://www.playboy.com/articles/15-sequels-better-than-the-original |first=James |last=Charisma| date = March 15, 2016 | access-date = July 19, 2016 | archive-url = https://web.archive.org/web/20160726093750/http://www.playboy.com/articles/15-sequels-better-than-the-original | archive-date = July 26, 2016 | url-status=dead | df = mdy-all}}

In contrast, Robbie Collin of The Daily Telegraph rated the film two stars out of five and called the plot "a curate's egg, thoroughly scrambled". He concluded, "The film squanders both of its casts, reeling from one fumbled set-piece to the next. It seems to have been constructed in a stupor, and you watch in a daze of future past".{{cite web|url=https://www.telegraph.co.uk/culture/film/filmreviews/10825791/X-Men-Days-of-Future-Past-review-A-mess-of-mutants.html |archive-url=https://web.archive.org/web/20140513011101/http://www.telegraph.co.uk/culture/film/filmreviews/10825791/X-Men-Days-of-Future-Past-review-A-mess-of-mutants.html |url-status=dead |archive-date=May 13, 2014 |title=X-Men: Days of Future Past, review: 'A mess of mutants' |work=The Daily Telegraph| location =UK |access-date=May 20, 2014}} Simon Abrams, writing for RogerEbert.com, gave the film two-and-a-half stars out of four, calling it a "visually driven and paint-by-numbers plot". Abrams was critical of the undeveloped subplots that built up because the film's pacing left little time to develop each element of the story set in the 1970s.{{cite web |url=https://www.rogerebert.com/reviews/x-men-days-of-future-past-2014 |title=X-Men: Days of Future Past, review by Simon Abrams for rogerebert.com |work=RogerEbert.com |access-date=June 6, 2014 |archive-date=May 24, 2014 |archive-url=https://web.archive.org/web/20140524193051/http://www.rogerebert.com/reviews/x-men-days-of-future-past-2014 |url-status=live }}

Following criticism of X-Men: The Last Stand for killing off major characters such as Professor Charles Xavier, Cyclops, and Jean Grey, X-Men: Days of Future Past has subsequently been viewed by some critics as a revision of those controversial plot elements in X-Men: The Last Stand.{{cite web|url=http://www.complex.com/pop-culture/2014/05/five-ways-x-men-days-of-future-past-fixes-the-franchises-mistakes/|title=Five Ways "X-Men: Days of Future Past Fixes the Franchise's Previous Mistakes|website=Complex|access-date=April 4, 2018|archive-date=April 5, 2018|archive-url=https://web.archive.org/web/20180405090310/http://www.complex.com/pop-culture/2014/05/five-ways-x-men-days-of-future-past-fixes-the-franchises-mistakes/|url-status=live}}

{{main|X-Men: Apocalypse|Dark Phoenix (film)}}

A sequel, X-Men: Apocalypse, was released on May 27, 2016.{{cite web|url=https://www.hollywoodreporter.com/news/release-date-announced-x-men-663154 |title=Release Date Announced for X-Men: Apocalypse |last1=Ford| first1=Rebecca| first2=Borys |last2=Kit|date=December 5, 2013 |work=The Hollywood Reporter |access-date=May 25, 2016 | archive-url = https://web.archive.org/web/20141027111510/http://www.hollywoodreporter.com/news/release-date-announced-x-men-663154 | archive-date= October 27, 2014| url-status=live}} A final sequel, X-Men: Dark Phoenix, was released on June 7, 2019.{{cite news |url=https://deadline.com/2018/03/20th-century-fox-release-dates-bohemian-rhapsody-dark-phoenix-the-new-mutants-1202353890/ |title=20th Century Fox shuffles release dates for Bohemian Rhapsody, Dark Phoenix & more |last=Ramos |first=Dino-Ray |website=Deadline Hollywood |date=March 26, 2018 |access-date=July 24, 2018 |archive-url=https://web.archive.org/web/20180329190103/https://deadline.com/2018/03/20th-century-fox-release-dates-bohemian-rhapsody-dark-phoenix-the-new-mutants-1202353890/ |archive-date=March 29, 2018 |url-status=live}}

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• 2014 in film
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{{reflist|refs=

{{cite news |date=March 26, 2010 |last=Fleming |first=Mike |title=Bryan Singer Producing X-Men: First Class |url=https://deadline.com/2010/03/singer-to-producex-men-first-class-29669/ |website=Deadline Hollywood |access-date=July 9, 2010 |archive-date=August 14, 2013 |archive-url=https://web.archive.org/web/20130814082823/http://www.deadline.com/2010/03/singer-to-producex-men-first-class/ |url-status=live}}

{{cite web |date=November 9, 2012 |last=Wigler |first=Josh |title=X-Men: Days Of Future Past Shoots In April 2013 |url=http://splashpage.mtv.com/2012/11/09/x-men-days-of-future-past-bryan-singer-april-2013/ |work=MTV Splash Page |access-date=January 29, 2013 |archive-date=March 5, 2013 |archive-url=https://web.archive.org/web/20130305045955/http://splashpage.mtv.com/2012/11/09/x-men-days-of-future-past-bryan-singer-april-2013/ |url-status=dead }}

{{cite web |date=November 27, 2012 |last=Singer |first=Bryan |title=I'd like to officially welcome back James McAvoy, Jennifer Lawrence, Michael Fassbender, & Nicholas Hoult to #XMEN for #DaysOfFuturePast |url=https://twitter.com/BryanSinger/statuses/273507047646064642 |via=Twitter |access-date=March 12, 2013 |archive-date=March 6, 2014 |archive-url=https://web.archive.org/web/20140306232301/https://twitter.com/BryanSinger/statuses/273507047646064642 |url-status=live}}Wikipedia:SPS

{{cite web |date=November 27, 2012 |last=Singer |first=Bryan |title=Thrilled to announce @ianmckellen118 & @SirPatStew are joining the cast of #XMEN #DaysOfFuturePast #magneto #professorX More to come ... |url=https://twitter.com/BryanSinger/statuses/273507302970105856 |via=Twitter |access-date=March 12, 2013 |archive-date=February 3, 2016 |archive-url=https://web.archive.org/web/20160203172308/https://twitter.com/BryanSinger/statuses/273507302970105856 |url-status=live}}Wikipedia:SPS

{{cite web|date=January 26, 2013 |last=Singer |first=Bryan |title=Very excited to welcome #annapaquin, @ellenpage & @shawnrashmore to #XMen #DaysofFuturePast – thank you @BrettRatner for letting them live! |url=https://twitter.com/BryanSinger/status/295265552375631872 |via=Twitter |access-date=March 12, 2013 |archive-date=September 22, 2013 |archive-url=https://web.archive.org/web/20130922181420/https://twitter.com/BryanSinger/status/295265552375631872 |url-status=live}}Wikipedia:SPS

{{cite web |date=March 2, 2013 |last=Singer |first=Bryan |title=Thrilled to welcome the brilliant #OmarSy from the amazing film #TheIntouchables to the cast of #Xmen #DaysofFuturePast! |url=https://twitter.com/BryanSinger/status/307985293401784321 |via=Twitter |access-date=March 12, 2013 |archive-date=March 3, 2013 |archive-url=https://web.archive.org/web/20130303121506/https://twitter.com/BryanSinger/status/307985293401784321 |url-status=live}}Wikipedia:SPS

{{cite web |date=March 3, 2013 |last=Sullivan |first=Erin |title=Halle Berry: I'm In for X-Men: Days of Future Past |url=http://www.accesshollywood.com/halle-berry-im-in-for-x-men-days-of-future-past_article_76429 |work=Access Hollywood |access-date=March 4, 2013 |archive-date=March 7, 2013 |archive-url=https://web.archive.org/web/20130307051710/http://www.accesshollywood.com/halle-berry-im-in-for-x-men-days-of-future-past_article_76429 |url-status=live}}

{{cite web |date=March 15, 2013 |last=Singer |first=Bryan |title=3 #Oscars, 6 #GoldenGlobes, 1 #BAFTA, 2 #Emmys, 2 #Tonys, 5 #Oliviers, 1 #Ceaser – Now let's blow s**t up! #XMEN |url=https://twitter.com/BryanSinger/status/312651578731536385 |via=Twitter |access-date=March 15, 2013 |archive-date=September 5, 2013 |archive-url=https://web.archive.org/web/20130905195655/https://twitter.com/BryanSinger/status/312651578731536385 |url-status=live}}Wikipedia:SPS

}}

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• {{Official website|https://www.20thcenturystudios.com/movies/x-men-rogue-cut}}
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• [https://web.archive.org/web/20140510005112/https://www.trask-industries.com/ Trask Industries] viral marketing website (archived)

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