Film partly shot at Bletchley Park to open BFI London Film Festival

Scene from The Imitation Game.

It's been announced a film partly shot at Bletchley Park in Milton Keynes will open the BFI London Film Festival.

The Imitation Game starring Benedict Cumberbatch tells the story of computer scientist Alan Turing, whose work cracking the Nazi enigma code helped end the Second World War. The film is released on November 14.

Benedict Cumberbatch.