While the New York City Ballet's season opening gala bashfully-bowed last week in a low key, celebrity-lean celebration, last night's opening gala at the American Ballet Theatre swanned with pomp & circumstance into the Metropolitan Opera House, led by its cultivated board and a handful of mismatched stars. The repertory-spanning buffet was watched by Uma Thurman (above), Bebe Neuwirth, Sigourney Weaver, Ashlee Simpson, Lucy Liu and Dior-clad models hoping to snare one of the many billionaires in attendance (such as Roman Abramovich). ABT principal Roberto Bolle was there (and woefully under-papped) for a Marcelo Gomes-choreographed piece, danced with Julie Kent.