On My Mother's Side

{{Infobox film

| name = On My Mother's Side

| native_name = {{infobox name module|fr|L'Origine des espèces}}

| image = On My Mother's Side poster.jpg

| caption =

| director = Dominic Goyer

| producer = Valérie d'Auteuil
André Rouleau

| writer = Dominic Goyer

| starring = Marc Paquet
Marc Béland
Élise Guilbault

| music = Antoine Bédard

| cinematography = Mathieu Laverdière

| editing = Michel Grou

| studio = Caramel Films

| distributor = Christal Films

| released = {{film date|2015|10|11|FNC}}

| runtime = 92 minutes

| country = Canada

| language = French

| budget =

}}

On My Mother's Side ({{langx|fr|L'Origine des espèces}}) is a Canadian psychological thriller film, directed by Dominic Goyer and released in 2015.Charles-Henri Ramond, [https://www.filmsquebec.com/films/origine-des-especes-dominic-goyer/ "Origine des espèces, L’ – Film de Dominic Goyer"]. Films du Québec, March 27, 2016. The film stars Marc Paquet as David, an architect who discovers that his father Paul (Marc Béland) is not his real biological father, and undertakes an effort to uncover the truth of his origins.Chantal Guy, [https://www.lapresse.ca/cinema/critiques/201604/21/01-4973674-lorigine-des-especes-au-pays-des-mensonges-.php "L'origine des espèces: au pays des mensonges"]. La Presse, April 22, 2016.

The film's cast also includes Sylvie de Morais-Nogueira, Élise Guilbault, Germain Houde, David La Haye, Gilles Pelletier and Cynthia Wu-Maheux.

The film premiered at the 2015 Festival du nouveau cinéma, before going into commercial release in 2016.

Wu-Maheux received a Prix Iris nomination for Best Supporting Actress at the 19th Quebec Cinema Awards in 2017.{{ill|Marc-André Lussier|fr}}, [https://www.lapresse.ca/cinema/ceremonies/gala-quebec-cinema/201706/02/01-5103833-gala-quebec-cinema-releve-de-la-garde.php "Gala Québec Cinéma: relève de la garde"]. La Presse, June 4, 2017.