Olsen makes a splashy style statement at the American Museum of Natural History in N.Y.C. Plus: Paris & Benji, Will Smith, Cameron Diaz and more

LOOK MA, NO HANDS!

Cameron Diaz throws her hands in the air at a screening for her new film, What Happens In Vegas, during the ShoWest convention in Las Vegas Wednesday. The Sin City comedy also stars Ashton Kutcher and Queen Latifah.