Watch the Survival Teaser for Dunkirk, directed by Christopher Nolan. In cinemas July 21, 2017.

“Dunkirk” opens as hundreds of thousands of British and Allied troops are surrounded by enemy forces. Trapped on the beach with their backs to the sea they face an impossible situation as the enemy closes in.

“Dunkirk” features a prestigious cast, including Tom Hardy (“The Revenant,” “Mad Max: Fury Road,” “Inception”), Mark Rylance (“Bridge of Spies,” “Wolf Hall”), Kenneth Branagh (“My Week with Marilyn,” “Hamlet,” “Henry V”) and Cillian Murphy (“Inception,” “The Dark Knight” Trilogy), as well as newcomer Fionn Whitehead. The ensemble cast also includes Aneurin Barnard, Harry Styles, James D’Arcy, Jack Lowden, Barry Keoghan and Tom Glynn-Carney.

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