The Dark Knight is a 2008 superhero film directed by Christopher Nolan. It follows Batman as he works with police lieutenant James Gordon and district attorney Harvey Dent to dismantle organized crime in Gotham City. Their efforts are challenged by a new criminal mastermind known as the Joker, whose unpredictable and chaotic tactics threaten the city’s stability and push Batman to his limits. The film blends action, suspense, and psychological tension, exploring themes of justice, morality, and the fine line between heroism and vigilantism.