Parties! The style, stars and scoop from Hollywood's hottest events

Though she looked perfectly put together when she arrived at the premiere of Marley & Me, Aniston (in Valentino) worried that she didn't have the must-have accessory of the night. "Did they give those to you here?" Aniston, who re-teamed with co-star Owen Wilson for the occasion, asked the crowd of fans sporting Santa hats for the occasion.