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.

Aubrey O'Day Evan Ross Susan Sarandon Julianne Hough Rachel Zoe Jessica Joffe Sharon Stone Isla Fisher Marisa Tomei Tom Hanks Kathy Griffin Nick Cannon Rita Wilson Sacha Baron Cohen Paula Garces Scott Porter christian serratos Daryl Hannah Jasmine Dustin Lykke Li Halle Berry Skybar Grauman's Chinese Theatre Catherine Keener Rosson Crow China Chow Eva Chow Keanu Reeves Stefano Tonchi Ben Lyons Adam Sandler Bryan Greenberg Kate Mulleavy Laura Mulleavy Rodger Berman British Fashion Council Jeffrey Katzenberg Quinton Aaron Louise Roe The Colony Eliza Doolittle Beverly Hilton Michael Govan Angelique Soave Mary Elizabeth Winstead Jacqui Getty Juan Carlos Obando Michael Rosenbaum Monique Lhuillier Anna Trebunskaya Bettina Korek Rob Moore Gary Gitnick Cherna Gitnick Tom Sherak Sue Kroll Patton Oswalt Keith David Patrick Fugit Candace Bailey Christa B. Allen Jim Sturgess Georgia King Kevin West Tara Summers Renee Olstead Tom Bugbee Sally Perrin Jessica de Rothschild Kyle Massey Fiona Gubelmann James D'Arcy Spago Louise Gray Zhou Xun David Rodriguez Cynthia Mittweg Jackie Sandler Cody Kennedy Natalie Martinez Assassin's Creed III Cloud Atlas Kathryn Newton Lana Wachowski Brad Grey British Fashion Council Cocktail Party Skybar at the Mondrian David Korma Cloud Atlas Premiere Olivier Martinez Andy Wachowski Tom Tykwer Jim Broadbent Lynn Harris Zhu Zhu David Gyasi W's Stefano Tonchi And Catherine Keener Celebrate W's 40th Anniversary And The Book Release Of "W: The First 40 Years" Book Release Of "W: The First 40 Years" W's 40th Anniversary