Julianne Hough, Sacha Baron Cohen and Adam Sandler step out for a benefit gala in Beverly Hills; Bryan Greenberg and Nick Cannon get down with some gaming at the "Assassin's Creed III" launch event; Catherine Keener, Monique Lhuillier and Sharon Stone celebrate 40 years of W at Spago; Halle Berry and Tom Hanks hit the red carpet premiere of Cloud Atlas; Rachel Zoe, Marisa Tomei and Christa B. Allen do cocktails with the British Fashion Council—get the rundown on all of Wednesday's top events in this edition of Last Night's Parties.
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