Jamie Bell Retreats August 13, 2010 Jamie Bell joins The Retreat… Jamie Bell has signed to star in upcoming thriller The Retreat. The Retreat centres on a married couple who run across a biohazard-suited soldier while on vacation on a remote island. The soldier warns them about an airborne virus that has killed everyone on the mainland. Bell joins Cillian Murphy and Thandie Newton in the film. Carl Tibbetts is directing the picture.