The Dark Knight is mainly based on Batman comic books from DC Comics, specifically those that focus on darker and more gritty storylines of the Batman character.
The Dark Knight is rooted in the Batman comic universe of DC Comics. It takes cues from a range of comic issues that showcase Batman's complex personality and the challenges he faces in a crime-ridden Gotham. These comics often emphasize the darker aspects of the hero's journey, and the movie reflects that.
The Dark Knight draws inspiration from various Batman comics. DC Comics has a rich collection of Batman tales, and this movie takes elements from multiple story arcs to create its unique narrative. Some of the key influences include classic Batman stories that explore the character's moral struggles and his battle against crime in a corrupt Gotham City.