Denver Underground Film Festival

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| name = Denver Underground Film Festival

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| location = Denver, Colorado, U.S.

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The Denver Underground Film Festival (DUFF) premiered November 21–23, 1997 at The Bug Theater in Denver, Colorado.{{Cite web|url=https://www.duffcinema.org/|title=DUFF|website=Denver Underground Film Festival|url-status=live|access-date=2019-11-09|archive-url=https://web.archive.org/web/20181130054023/https://www.duffcinema.org/ |archive-date=2018-11-30 }} Since then the visions of hundreds of independent filmmakers from around the world have been showcased, including films by classic experimental and avant-garde filmmakers like Stan Brakhage, Luis Buñuel, Fassbinder, and Man Ray.