Cameron Diaz Knows What Happened in Vegas

Ashton Kutcher and budding writer Cameron Diaz were back on the set of What Happens in Vegas Wednesday and actually in...Vegas. In the movie they accidentally marry after a crazy night of partying, so those extra large drinks must get them into trouble. But, apparently it's not all work for Cameron in Vegas — she was spotted out last Saturday "with a tall, dark-haired mystery male by her side," (who wasn't Bradley Cooper) at Jet where she partied until 1 a.m. before gambling for a few more hours. Unfortunately, when you're a celebrity like Cameron, stories like that definitely don't stay in Vegas.