Style Spotlight: Rooney Mara

 Rooney Mara white Givenchy gown
Photo: Getty Images
Rooney Mara stuns in Givenchy Haute Couture by Riccardo Tisci.

Rooney Mara was a vision in a white silk tulle gown from Givenchy Haute Couture by Riccardo Tisci at the world premiere of The Girl with the Dragon Tattoo in London.

The floor-length number, from the fashion house's 'birds of paradise'-inspired Fall 2011 collection, featured appliqué of Chantilly lace and pony-skin piping.

A slightly modified version of the designer's runway original, the dress included an additional layer of lining that offered a bit more coverage, yet the actress still showed plenty of skin by way of cutout details at the shoulders and waist and a sexy, open back.

In related news, check out Rooney Mara in Alexander McQueen on the January cover of Dazed & Confused.