Romantic comedy rounds out its cast.

Rose Byrne (‘Bridesmaids,’ ‘X-Men: First Class’), Anna Faris (‘The Dictator,’ ‘What’s Your Number?’) and Simon Baker (‘The Mentalist,’ ‘Margin Call’) are all set to join Rafe Spall (‘Prometheus,’ ‘Anonymous’) on the cast of ‘I Give It a Year,’ a romantic comedy from writer-director Dan Mazer.

The film follows a mismatched couple as they struggle to survive their first year of marriage. Byrne and Spall will play the married couple at the heart of the story, while Faris and Baker will take supporting roles.

‘I Give It a Year’ is scheduled to begin shooting in London this spring.