During World War II, allied soldiers from Britain, Belgium and France were surrounded by Nazi forces and had no choice but to fight ? uncertain if help would ever come. Directed by Christopher Nolan (The Dark Knight, Inception) and starring a gifted cast of Fionn Whitehead, Cillian Murphy, Tom Hardy, Mark Rylance and Harry Styles, Dunkirk portrays the fierce battle and heroic evacuation of 400,000 soldiers.