A24 has ancquired US rights from UTA Independent Film Group to Room, the drama that will star Brie Larson and shoots this autumn.

Lenny Abrahamson will direct the Emma Donoghue adaptation about a young boy raised in a shed who learns on his fifth birthday that he and his mother are captives.

Filmnation represents international rights to the project.

Ed Guiney produces and Andrew Lowe is the executive producer for Ireland’s Element Pictures with Tessa Ross, Sue Bruce Smith, and Rose Garnett for Film4.

The Irish Film Board is developing Room with Film4. UTA Independent Film Group is arranging financing with Element.