Actor Jamie Bell has just joined the cast of the new Carl Tibbetts film The Retreat, according to Deadline Hollywood.

Bell joins a cast that already includes Cillian Murphy, Thandie Newton and David Tennant. We reported just a few weeks ago that Murphy had replaced Jason Isaacs in the film.

Carl Tibbetts will make his directorial debut on the film, from a script he co-wrote with Janice Hallett. The story revolves around a married couple (Murphy and Newton) who head to a remote island to work out their marital issues where they find a military man (Tennant) who tells them that everyone on the mainland had been killed by an airborne virus. It wasn't clear what role Bell would play in the film.

Filming is said to start next month in Wales.