Penned by Black List alumni Melissa Stack ("I Want to F— Your Sister," which made the top of the list in 2007), the film follows a woman (Diaz) who discovers she is the other woman in a love triangle. She meets and teams up with the wife in order to give the philandering husband his just desserts.
Up next for Diaz is the Coens' "Gambit," Ridley Scott's "The Counselor" and "Agent: Century 21," a comedy about a real estate agent who gets mixed up with a Mexican drug lord (Benicio Del Toro). Wiig, meanwhile, will star in the upcoming indie comedy "The Skeleton Twins" opposite her former SNL colleague Bill Hader, and is currently shooting the romantic comedy "Hateship, Friendship" with Guy Pierce. She is also attached to Sean Penn's "The Comedian."