Watch: Here's the teaser for Dunkirk, Christopher Nolan's epic World War two masterpiece

Christopher Nolan’s epic World War II masterpiece Dunkirk just got its first teaser trailer. Filming began on 23 May 2016 in Dunkirk, France and is shot on 65mm large format film stock by cinematographer Hoyte Van Hoytema, who was also responsible for Interstellar. The film, which stars Tom Hardy, Mark Rylance (of Bridge of Spies fame), also features Harry Styles (of One Direction) in his first film role. It will tell the story of an effort to evacuate more than 300000 allied troops who were surrounded by Nazi troops in the French seaport of Dunkirk. The trailer opens with an almost peaceful shot of the sea foam washing onto the beach. Tension quickly mounts as troops are seen aligned on the beach, marching on the harbor, then out in the water. The words ‘At the point of crisis’, ‘At the point of annihilation’ and ‘Survival is victory’ buildup the tension between the screens. The trailer leaves us with the look of dread on the soldiers faces as they realise the possibility of attack looms ahead. Dunkirk will debut in theaters on 21 July 2017.