The British actress wore a Nina Ricci Resort 2012 dress for the National Board of Review Awards.
The black taffeta dress with a lacy bodice was pretty but the head-to-tie black was a bit uninspiring. A colour break was necessary, in the form of the footwear (she's wearing Roger Vivier sandals) and those tights need to go. Keira is also carrying a Chanel bag.
Image Sources: nymag.com/fashion, justjared.buzznet.com