The first trailer for a biopic about the life of gay codebreaker and computer genius Alan Turing has been released.
The US film, titled The Imitation Game, was written by Andrew Hodges, and stars Benedict Cumberbatch as Turing. Turing is considered to be the father of modern computing, and played a key role in deciphering German codes in World War II. His achievements, however, were overshadowed when he was prosecuted for "gross indecency" in 1952, because of his relations with other men.