Dunkirk is a war movie directed by Christopher Nolan. It is based on the true events of the Dunkirk evacuation during World War II, where Allied soldiers were trapped on the beaches of Dunkirk and had to be evacuated by civilian boats. The movie tells the story from three different perspectives - land, sea, and air - and creates a sense of tension and urgency throughout. Dunkirk received critical acclaim for its immersive storytelling, stunning visuals, and intense atmosphere.