"What Happens in Vegas" **1/2 (out of four): "What Happens in Vegas" is a lot like the city for which it's named - boisterous, silly and probably a lot more fun when intoxicated.

Ah, Las Vegas. Where prince and pauper alike come to throw their cares, money and a few brain cells away. "What Happens in Vegas" tells the story of two incompatible strangers who, after a night of drunken debauchery, find themselves married. After being publicly dumped by her stodgy fiancé, Joy (Cameron Diaz) travels to Sin City to drown her sorrows. There, she bumps into Jack (Ashton Kutcher), who is similarly trying to forget his woes after being fired from his father's cabinet company. Type-A commodities trader Joy and slacker Jack don't get along at first, but after several shots they start to warm up to one another. After a few hours of too much tequila and drunken over-sharing, Joy wakes up in Jack's bed with a ring on her finger.

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