'The Imitation Game' - Opening Night Gala of 58th BFI London Film Festival [Getty Images]

LONDON, ENGLAND - OCTOBER 8: British actors Keira Knightley (R) and Benedict Cumberbatch pose for pictures as they arrive for the BFI London Film Festival's premiere of 'The Imitation Game' at the Odeon Leicester Square in central London, England on 8 October, 2014. (Photo by Yunus Kaymaz/Anadolu Agency/Getty Images)

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