Stop everything - we finally have a first look at Harry Styles in Dunkirk

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The new trailer for Christopher Nolan's film Dunkirk offers a first look at One Direction star Harry Styles in his acting debut.

Harry cut off his long curly hair for his role as a soldier in the retelling of the 1940 Miracle of Dunkirk.

Harry Styles
(Warner Bros)

In the new clips, he can be seen submerged under water, in a life-jacket and sitting helplessly on the French beach.

Photographs of him during filming drew legions of fans to the film's locations and they expressed outrage when he was not featured in the film's teaser trailer, which was released earlier this year.

The film also stars Tom Hardy, Sir Kenneth Branagh, Mark Rylance and Cillian Murphy.

Harry Styles
(Warner Bros)

The trailer opens with hundreds of thousands of British and Allied troops surrounded by enemy forces as bodies float in the sea before bombs rain down.

Dunkirk opens in the UK on July 21 next year.