Unfortunately, this isn't it. In March of 1943, code-breakers at Bletchley Park discover to their horror that the German navy has changed the code sets used to communicate with U-boats at sea. These were based on the famous and diabolically complex encryption machine known as the Enigma. Authorities enlist the help of a brilliant young man named Tom Jericho (played by Dougray Scott) to help them break the code again. The possibility of a spy within the British code-breakers' ranks is raised, and Tom's love interest, Claire (Saffron Burrows), has disappeared. To solve these mysteries, Tom recruits Claire's best friend, Hester Wallace (Kate Winslet). While investigating Claire's personal life, the pair discovers personal and international betrayals involving the now-infamous Katyn massacre in Poland. Of course, Tom and Hester fall in love.
Dougray Scott actually does bear some physical resemblance to Alan Turing, but there the comparison ends. Turing's sorry, shabby reward for the instrumental role he played in winning the war for Britain was to be persecuted during the Cold War because his homosexuality was viewed as a security risk, to the point that he committed suicide. While 'Enigma' looks good and plays fairly well as a decent espionage film, the viewer who knows the factual background of this piece of fiction will probably be disappointed. The best part for me was the recreation of the physical setting at wartime Bletchley Park, especially the Enigma machines themselves and the famous Bombes, which were invented by Turing (Jericho in the film). These were among the world's first computing machines; they were a stroke of brilliance by Turing: Instead of looking for what a coded message WAS, they operated according to the principle of eliminating what it was NOT. This cut the number of possibilities by better than 90% and greatly simplified the work of the human code-breakers. It is somewhat surprising that this rather wan film is the work of Tom Stoppard and Michael Apted; they have done better.