Roadside Attractions has dropped a trailer for Xavier Dolan's fifth feature film, "Mommy," which won the Jury Prize at the Cannes Film Festival earlier this year. The film centers on the relationship between a single mother struggling to raise her troubled teenage son. Anne Dorval, who notably starred opposite Dolan in his 2009 feature directorial debut "I Killed My Mother," appears, once again, in the role of the mother, while Suzanne Clément, also one of the stars of Dolan's first film, plays the neighbor to Dorval's character.