Mr. Chow was a zoo Saturday night as X17 photographers spotted a luminous Penelope Cruz - in that gorgeous yellow dress - actress Bai Ling (who wore an "interesting" outfit, as usual), P-Diddy - who didn't have any advice for Paris Hilton when asked - producer Brian Grazer and director Brett Ratner, who joked to us about a behind-bars Paris possibly starring in his next film and making Rush Hour 4... but is that second part really a joke?