In Hollywood, Katie Holmes and Tom Cruise made a red carpet appearance at the premiere of The Kennedys, where Holmes remembered getting into character to play legendary first lady Jacqueline Kennedy. "The wardrobe department worked very hard to re-create a lot of Mrs. Kennedy's iconic looks, including a hand-painted gown," said Holmes, who looked every inch the style icon herself in a knitted lace dress from the Ralph Lauren Collection. "It was a lot of fun to do all of the fittings." Across town, Jake Gyllenhaal arrived solo to a screening of Source Code but soon met up with onscreen flame Michelle Monaghan. In New York City, Michelle Williams sparked Chanel envy when she walked the press line at a screening of Meek's Cutoff. See more photos from last night's parties in the gallery.