Xavier Dolan's Mommy is a movie of little moments and big feelings. Dolan presents the movie mostly in a squarish aspect ratio, wherein his three main characters talk and interact, but occasionally, emotions become too big for the frame. In one remarkable, euphoric moment, a character literally spreads the frame open wide with his hands. Anne Dorval stars as the title "mommy," Diane, though she goes by "Die." She's a widow and singlehandedly raising a loving, but explosive son, Steve (Antoine-Olivier Pilon). Their dynamic is fascinating. Diane looks to be about mid-forties (in reality, Doval is mid-fifties), and presents herself a sexual being, with long, wild hair, tight clothes, and sexy shoes.