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Like the Hollywood royalty she is, Oscar winner and event co-chair Renée Zellweger shows off the elegant train of her gold Carolina Herrera gown at the Metropolitan Museum of Art Costume Institute Benefit Gala in New York. Calvin Klein, Vogue editor Anna Wintour, Jerry Seinfeld and Hugh Jackman joined Zellweger in celebrating the new exhibition Dangerous Liaisons: Fashion and Furniture in the 18th Century.