The comedy Couples Retreat, which already has a brilliant male cast of Vince Vaughn, Jon Favreau and Jason Bateman set in stone, has just bagged its three female leads. Forgetting Sarah Marshall star Kristen Bell will play Bateman's missus, Malin Akerman will play Vaughn's other half, while Sex and the City star Kristen Davis will stretch her comedic chops, portraying Jon Favreau's suffering spouse. It's an absolutely cracking cast, with the three lads especially having a proven pedigree in comedy that is pretty much unrivalled in mainstream cinema. It's to be directed by longtime Vaughn/Favreau cohort Peter Billingsley, who has produced a lot of both stars movies, and appeared in The Break Up as Jennifer Aniston's best mates husband. Let's hope this is the laugh riot we all know it can be.