A young couple find their fledgling marriage put to the test by unforeseen temptations and skeptical relatives in this upbeat romantic comedy starring Rose Byrne, Rafe Spall, Anna Faris, and Simon Baker. The moment industrious Nat (Byrne) met struggling author Josh (Spall) at a party, it was love at first sight. Though on the surface the pair had precious little in common, the spark that ignited between them led to a delirious whirlwind romance. When they decide to get married, everyone they know expresses doubt that the union will last. When Nat begins working with a dashing American client named Guy (Simon Baker) and Josh reconnects with his scorching ex-flame Chloe (Faris), it starts to feel like the naysayers saw clearly what the smitten couple could not. Later, during the run-up to their first anniversary, Nat and Josh learn that repairing the cracks in their marriage will take more work than anticipated, and start to wonder if it's really worth all of the effort. Minnie Driver, Stephen Merchant, Olivia Colman, and Jason Flemyng co-star.