Byrne, Faris join ‘I Give It a Year’ cast

Working Title romantic comedy also stars Baker, Spall

Top comediennes Rose Byrne (“Bridesmaids”) and Anna Faris (“The Dictator”) are set to join Rafe Spall and Simon Baker in Working Title’s romantic comedy “I Give It a Year.”

Dan Mazer is writing and directing the pic, which follows a mismatched couple as they struggle to survive their first year of marriage. Byrne and Spall (“Prometheus”) will play the married couple at the heart of the story, while Faris and Baker (“Margin Call”) will play strong supporting characters.

Working Title principals Tim Bevan and Eric Fellner will produce with Kris Thykier, while Liza Chasin and Debra Hayward will exec produce. Studiocanal is fully financing the film, which is skedded to start shooting this spring in London.

Byrne is coming off key supporting roles in three of last year’s biggest moneymakers — Universal’s comedy “Bridesmaids,” 20th Century Fox’s superhero pic “X-Men: First Class” and Film District’s horror hit “Insidious.” Aussie thesp next stars as Bradley Cooper’s wife in Derek Cianfrance’s crime drama “The Place Beyond the Pines.”

Faris is coming off starring roles in two 2011 comedies “Take Me Home Tonight” and “What’s Your Number?,” the latter of which she also exec produced. Thesp will soon be seen alongside Sacha Baron Cohen in Paramount’s laffer “The Dictator,” as well as in Relativity Media’s omnibus comedy “Movie 43.”

CAA reps both Byrne and Faris, who is also repped by Anonymous Content and attorney Robert Offer. Byrne is repped in Australia by RGM Artist Group.