Turing improved upon the electromechanical Polish bombe machine and used that for cryptanalysis during the war. Bombes weren’t computers. His war work is often confused with the Colossus computers built by Tommy Flowers also at Bletchley Park, which built on some Turing theory, but with which Turing was not involved.
No idea what movie you’re talking about but from what I remember he did invent the Turing Machine and had a lot to do with lambda calculus.
I am also relatively certain that he worked with computers for some sort of military thing according to the Wikipedia article.
Turing improved upon the electromechanical Polish bombe machine and used that for cryptanalysis during the war. Bombes weren’t computers. His war work is often confused with the Colossus computers built by Tommy Flowers also at Bletchley Park, which built on some Turing theory, but with which Turing was not involved.