The dramatic performances are excellent, the historical accuracy leaves much to be desired.

Rating: 8/10 (16 July 2015)

I'll check the "spoiler" box just in case I inadvertently include one.
Benedict Cumberbatch may come to be considered one of the best actors of his generation. I would agree with that.
Considering the script he was given, he did a masterful job of portraying the tragically complex character of Alan Turing. Sadly, the script did not do justice to the character or his singular achievements in helping to break the Enigma code and that contribution to the allied victory in WW2. The rest of the cast was equally outstanding.
Several reviewers have objected to the sympathetic portrayal of Turing's homosexuality as "having an agenda." Society's very unsympathetic attitude towards homosexuality at that time is integral to the story, particularly considering what was done to him by society in general and the British government in particular after the war.
That part of Turing's life was portrayed with a reasonable degree of fact. The rest, not so much.
I base my review rating on the performances of the cast, and the fact that any telling of this story is better than none.
As far as historical accuracy is concerned, the writers, directors and producers really need to go back to school.