Rose Byrne, Anna Faris, Rafe Spall and Simon Baker will star in Dan Mazer’s directorial debut, produced by Working Title.
Stephen Merchant has also signed on to star in the comedy, about a young couple struggling to save their relationship during the first year of marriage.
Mazer, who wrote the script for Borat and Bruno, is directing and writing the film, which will begin shooting at the end of April in and around London.
Tim Bevan, Eric Fellner and Kris Thykier are producing with Debra Hayward and Liza Chasin serving as executive producers.
StudioCanal are handling international sales.