At the opening of Armida at the Metropolitan Opera House sponsored by Yves Saint Laurent, Camilla Belle wore a beige silk Yves Saint Laurent Edition Soir 2010 dress, black patent leather sandals and carried a nude satin clutch. Andrew H. Walker / Getty Images Ginnifer Goodwin showed some skin in a YSL Edition Soir 2010 silk bustier, tuxedo pants, and a violet satin clutch. Andrew H. Walker / Getty Images Chloë Sevigny looked chic in a black Yves Saint Laurent jumpsuit, black suede gloves, and a YSL ‘heart’ necklace. Peter Kramer / AP Photo Maggie Gyllenhaal opted for a skin-colored YSL Edition Soir georgette dress and bright red heels. Peter Kramer / AP Photo Christine Baranski looked elegant in a black dress with gold inlay and a delicate neckline. Peter Kramer / AP Photo Hamish Bowles looked dapper in a crisp tuxedo—and bright pink socks. Charles Eshelman, FilmMagic / Getty Images Julianna Margulies wore a long, black YSL Edition Soir 2010 dress in black silk crêpe with crystal straps. Andrew H. Walker / Getty Images Patricia Clarkson opted for a black and white silk Yves Saint Laurent dress with velvet details, patent leather sandals and a satin YSL clutch. Peter Kramer / AP Photo Emily Mortimer dazzled in a green Yves Saint Laurent silk caftan and an embroidered clutch. Peter Kramer / AP Photo Bette Midler glittered in a shimmering ombre mini dress and a gold clutch. Andrew H. Walker / Getty Images Mary Sorrenti wore a black Yves Saint Laurent silk organza dress with velvet bows. Charles Eshelman, FilmMagic / Getty Images Jennifer Morrison was a vision in white, dazzling with a long train and strappy sandals. Andrew H. Walker / Getty Images