Other Woman, The
Starring: Cameron Diaz, Leslie Mann, Kate Upton
After discovering her boyfriend is married, a woman tries to get her ruined life back on track. But when she accidentally meets the wife he's been cheating on, she realizes they have much in common, and her sworn enemy becomes her greatest friend. When yet another affair is discovered, all three women team up to plot mutual revenge on their cheating, lying, three-timing SOB.