Actors William H. Macy, Joan Allen and Jacob Tremblay will join Brie Larson in the movie "Room", an adaptation of Emma Donoghue's popular novel.
Published in 2010, the story of the novel is told from the perspective of a five-year-old boy, Jack(Tremblay), who is being held captive in a small room along with his mother.
Sean Bridgers, Tom McCamus and Megan Park are also amongst the supporting cast, reports hollywoodreporter.com.
Directed by Lenny Abrahamson, the production of the film begins at Pinewood Studios near London and on location in Toronto.
