Co-chairs George Clooney and Julia Roberts arrive for the Metropolitan Museum of Art Costume Institute Gala, "Superheroes: Fashion and Fantasy" in New York, May 5, 2008. The event runs from May 7 to Sept. 1 with an opening red-carpet gala on Monday night that was to include former "Batman" star George Clooney and actress Julia Roberts. (Xinhua/Reuters Photo)