Rooney Mara had a half-sheer Givenchy number on for today's Met Gala in NYC. Givenchy was also a favourite of Rooney's as she made the awards season rounds on behalf of her movie The Girl With the Dragon Tattoo earlier this year. Today, Givenchy designer Riccardo Tisci was by her side showing his support in return. What do you think of Rooney's ensemble? Be sure to weigh in on our Met Gala fashion and beauty polls!