Just read Hodges' biography "Alan Turing: The Enigma". It's definitive. If you have not seen "The Imitation Game" I urge you not to see it. It's a awful piece of crap that goes so far astray from the truth that it's a travesty.
Too late, unfortunately. I actually loved that movie (not for itself in particular, I just like that genre of movie, along with Beautiful Mind, Hidden Figures, etc.)
But it's sad to know it's so inaccurate, beyond basic dramatic licenses. I'll pick up the book and get the real version instead. Thanks for the recommendation! I learned something today.
