Harry Styles, left, Aneurin Barnard and Fionn Whitehead in a scene from Dunkirk. Styles, 23, plays a British soldier in Christopher Nolan’s suspense thriller about the evacuation of Allied soldiers from Dunkirk, France, in 1940. Photo: Warner Bros Pictures via AP

Harry Styles’ fame was news to Dunkirk director Christopher Nolan and co-star Mark Rylance

I cast Harry because he fit the part. I wasn’t aware really of how famous he is, says the director of suspense thriller Dunkirk, in which the One Direction pop star plays a British soldier evacuating from wartime France

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Harry Styles, left, Aneurin Barnard and Fionn Whitehead in a scene from Dunkirk. Styles, 23, plays a British soldier in Christopher Nolan’s suspense thriller about the evacuation of Allied soldiers from Dunkirk, France, in 1940. Photo: Warner Bros Pictures via AP
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