Suzanne Clement and Xavier Dolan are both from Canada and collaborated together in which art house film in 2009?
Suzanne Clément: Suzanne Clément (born 12 May 1969) is a Canadian actress. Suzanne Clément:  She is perhaps best known for her work in Xavier Dolan's arthouse films "I Killed My Mother" (2009), "Laurence Anyways" (2012) and "Mommy" (2014). Xavier Dolan: Xavier Dolan (born "Xavier Dolan-Tadros" 20 March 1989) is a French Canadian actor, director, screenwriter, editor, costume designer, and voice actor from Quebec. Xavier Dolan:  He first received international acclaim in 2009 for his debut feature "I Killed My Mother" ("J’ai tué ma mère"), which premiered at the Cannes Film Festival in the Director's Fortnight.
"I Killed My Mother"