Source of secrets. Millions of code permutations could be created with the Enigma machine until the British reverse engineered signals using brain power and a giant computer

If you were dissatisfied with the recent film Enigma, starring Kate Winslet, and angered by Hollywood's historical rewrite last year of how the ultimate Nazi secret code was cracked by the Americans in U-571, before they had even entered World War II, here is a unique opportunity to discover more about how British ingenuity managed to save hundreds of thousands of lives.

The story of the codebreakers at Bletchley Park has been one of the last to be told. There, British scientists, mathematicians and eccentrics unravelled German military and naval communications encoded by the incredibly complicated Enigma machine. Dr Mark Baldwin, who has made a detailed study of Enigma, will give an entertaining and instructive talk Codebreakers - the Story of Enigma on 6 December at the Swindon Arts Centre, using an impressive collection of slides and a hands-on demonstration of one of the very few working Enigma machines in existence.

Tickets £10, are available from the box office on 614837.