Cameron Diaz and Leslie Mann put their stakeout skills to the test in the first clip for The Other Woman. Cameron Diaz stars as a spurned mistress who teams up with her boyfriend's wife (Leslie Mann) when they learn that he is seeing yet another womlover (Kate Upton). Eventually, this trio of women join forces to take down their three-timing man (Nikolaj Coster-Waldau), but before that happens, this clip features Cameron Diaz and Leslie Mann getting their first glimpse at a bikini-clad Kate Upton on the beach. Taylor Kinney is also featured in this scene from director Nick Cassavetes' comedy, arriving in theaters April 25.