An intriguing central character and story and good performances keep this film entertaining throughout, but structurally the film has problems that make this feel like a missed opportunity. There is obviously an emphasis on Turing's achievements and this forms the backbone of the film. Despite the multitude of cliches on display as Turing races against time and people who don't understand his genius, it is held together by solid performances from Cumberbatch and Knightley and some great support particularly from Charles Dance and Mark Strong. It is a shame then that the more interesting elements of the story occur after the code is broken as characters must decide what to do next, but very little time is spent on this. Equally, Turing's ultimate fate after the war deserves as much attention and his homosexuality was an important facet of the character. It is a surprise therefore to find that this issue is essentially relegated to an overarching framing story, a couple of flashback to his school days and as a postscript to the film. In essence, this is a rather by-the-numbers film that pays lip service to some rather more complex issues. This could have been a much better film.