The Dark Knight is a 2008 American superhero film co-written and directed by Christopher Nolan. Based on the DC Comics character Batman, the film is a sequel to Batman Begins. Christian Bale reprises the lead role. Batman's primary conflicts in the film include his fight against his arch-nemesis the Joker and his strained friendship with district attorney Harvey Dent. For his conception of the film, Nolan was inspired by the Joker's first two appearances in the comics and Batman: The Long Halloween. The Dark Knight was filmed primarily in Chicago, as well as in several other locations in the United States, the United Kingdom, and Hong Kong. The director used an IMAX camera to film six major action sequences, including the Joker's first appearance in the film. The Batsuit was redesigned, with a cowl allowing Bale to move his head.
The film was released on July 18, 2008 in North America, and on July 21, 2008 in the United Kingdom. During its opening weekend, the movie brought in over $155 million, breaking nearly every box office record.