Also making the post-Costume Institute scene at the Box: Jennifer Connelly, smooching her husband, Paul Bettany, on the highly trafficked dance floor. Also downstairs, Naomi Campbell schmoozed with Uma Thurman's ex Andre Balazs, looking like old friends, an onlooker reports. Upstairs, Rose McGowan recalled to us her fondest moment from this year's Oscars – waltzing with Peter O'Toole, naturally. A pregnant Salma Hayek even made post-party, telling us as she left the ball earlier that night: "I feel good."
Cheryl Burke, holding hands with her boyfriend Matthew Lawrence at Hollywood hotspot Parc. According to an onlooker, the pair swapped kisses and chatted up friends – including fellow Dancing with the Stars castmate Joey Fatone. The group also dined on mini Kobe cheeseburgers.
Wilmer Valderrama, throwing back shots of Patrón Silver with pals at Hollywood hotspot L'Scorpion. The guys were laughing as they watched four female lounge-goers belt out a karaoke-style version of Ne-Yo's "Because of You."
By LESLEY MESSER
Tuesday's Caught in the Act >