Room roams from director's tight rein
In Room, Brie Larson plays a mother who raises her five-year-old child in the confinement of a room after she has been kidnapped and locked up by a sex abuser. The scenario here is cinematic and psychological: the “room” represents the entire existence that the boy has known since birth, and the mother-son dynamic is regulated by the physical parameters of the place, which in turn define their…