For seven years, Ma, a young mother (Brie Larson, in a harrowingly powerful performance) has been trapped, with her five-year-old child (Jacob Tremblay), in a one-room shed. Director Lenny Abrahamson (Frank, Adam and Paul) and Emma Donoghue, adapting her best-selling novel, are astonishingly sensitive to the poetic, comic and hallucinatory resonances in the child’s view of this bizarre life experience, particularly the concept that one small, dark room is the whole universe. Though the film uses the blueprint of a thriller, it explores much richer and surprising terrain, including the mother’s desperate effort to free her child and return them to real life. Abrahamson and Donoghue make Room a shockingly effective parable about how we face the crisis of learning about the world. Larson and Tremblay will be heard from come award season. And Variety’s Justin Chang opines this might just be “the call-your-mom-sobbing-afterward movie of 2015.”