Keira Knightley & Benedict Cumberbatch: 'Imitation Game' Set!

Keira Knightley wears a bulky jacket over her red dress on the set of her new film The Imitation Game on Wednesday afternoon (September 18) in Hertfordshire, England.

The 28-year-old actress was joined on the set that day by Benedict Cumberbatch.

PHOTOS: Check out the latest pics of Keira Knightley

In the film, English mathematician and logician, Alan Turing (Cumberbatch), helps crack the Enigma code during World War II. The movie is set to be released at some point in 2014.

15+ pictures inside of Keira Knightley and Benedict Cumberbatch on set…