Room is a 2015 drama film directed by Lenny Abrahamson and written by Emma Donoghue, based on her 2010 novel of the same name. It stars Brie Larson as a young woman who has been held captive for seven years and whose five-year-old son (Jacob Tremblay) was born in captivity. Their escape allows the boy to experience the outside world for the first time. The film also stars Joan Allen, Sean Bridgers, Tom McCamus and William H. Macy.

The film was a co-production of Canada, Ireland, the United Kingdom, and the United States and was shot in Toronto, with the eponymous set built at Pinewood Toronto Studios. The crew designed each part of the set of the room to be removable to provide access for the crew. Larson researched trauma and nutrition for her part.

Room premiered at the 42nd Telluride Film Festival on September 4, 2015, and later screened at the 2015 Toronto International Film Festival, where it won the People's Choice Award. The film was theatrically released in Canada on October 23, 2015, by Elevation Pictures and in the United Kingdom and Ireland on January 15, 2016, by StudioCanal. It began a limited theatrical run in the United States on October 16, 2015, and the wide expansion so far on January 22, 2016, by A24. The film was acclaimed by critics, who particularly praised the performances of Larson and Tremblay and the storytelling, and grossed $36.3 million on a $13 million budget.

Cited as one of the best films of the year, Room received numerous awards and nominations. At the 88th Academy Awards, Room received four nominations, including Best Picture. It also won nine Canadian Screen Awards, including Best Motion Picture, and seven Irish Film & Television Awards, including Best Film. Larson won the Academy Award, Golden Globe Award and the BAFTA Award for Best Actress.