UPDATE: At the 2014 Cannes Film Festival, A24 has secured the US distribution rights to ROOM.
Variety reports FilmNation Entertainment will begin international sales on Lenny Abrahamson's ROOM, which will star Brie Larson and be adapted by Emma Donoghue from her own novel, at the market during the 2014 Cannes Film Festival.
In ROOM, Larson (SHORT TERM 12, 21 JUMP STREET) will portray a woman kidnapped as a teenager who has been held captive for years in a 10-by-10 shed where she lives with her five-year-old son.
Ed Guiney will produce and Andrew Lowe will executive produce for Irish production company Element Pictures. Tessa Ross, Sue Bruce Smith and Rose Garnett will executive produce for Film4 who are developing the film with the Irish Film Board.
Production will begin this fall.