HBO Films has picked up the rights on a new live-action film based on the American Girl dolls for Picturehouse; Julia Roberts is producing through her Red Om Films.

The Mattel-owned American Girl is the Depression-era doll Kit Kittredge, which debuted as a character in 2000, says The Hollywood Reporter.

Production on the film will begin this summer; no director has been attached. Ann Peacock wrote the screenplay.