Histoire de Pen (2002)
Histoire de Pen (also released internationally as Inside, and in the United Kingdom as Banged up) is a Québécois film directed by Michel Jetté and released in 2002, about a young man's time in a penitentiary. It is based on Léo Lévesque's collection of prison stories Contes en coup de poing. The film was classified 13+ in Québec and 18+ in the United Kingdom, and features Emmanuel Auger, Karyne Lemieux and David Boutin.
More at Wikipedia.