Keira Knightley in Chanel Couture

Keira Knightley in Chanel Couture. Photo by BFAnyc.com.

Who: Keira Knightley

Where: A special screening of "The Imitation Game," sponsored by Chanel and followed by a dinner at the Chateau Marmont in Los Angeles.

When: Monday, November 10th

What: An off-white neoprene and organza trapeze dress embroidered with silver, pale pink and transparent stones, from the Chanel fall-winter 2014/14 Haute Couture collection.

Why: In the film, Knightley plays Joan Clarke, a pioneering cryptanalyst. Clearly, Knightley has cracked the code to red carpet success.