Benedict Cumberbatch fights time and his colleagues to build the first machine able to break Nazi code in the first trailer for "The Imitation Game," which also stars Keira Knightley.
Cumberbatch ("Star Trek Into Darkness") plays English mathematician and logician Alan Turing, who Winston Churchill said made the single biggest contribution to Allied victory in World War II.
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The U.K. preview (above) shows Turing clashing with colleagues, played in the drama by Matthew Goode ("Watchmen"), Mark Strong ("Sherlock Holmes") and Charles Dance ("Game of Thrones").
"The Imitation Game," directed by Morten Tyldum ("Headhunters"), hits theaters in the USA on Nov. 21 courtesy of The Weinstein Company.