Christopher Nolan shot some of the sequences on giant IMAX cameras that were loud enough that the actors had to dub over their dialogue later.
They also destroyed one of the only four IMAX cameras in existence during the 18-wheeler chase scene.
The redesigned Batsuit allowed Batman to turn his head at the neck – something that the world’s greatest detective probably should have figured out earlier.
Even the filmmaker’s didn’t know the Joker’s backstory, but one of the theories that they operated under was that he was a soldier suffering from PTSD, explaining his access and comfort with using military-grade explosives.
Bruce Wayne drives a Lamborghini Murcielago in the film, which is the Spanish word for “bat.”
The Italian voice actor that dubbed over Jack Nicholson’s Joker’s lines is the father of the actor who did the same for Heath Ledger’s Joker. You know what they say – keep the insanity in the family.
The Dark Knight was the first Batman film to not have “Batman” in the title.
It was also the first film without any live or computer generated bats in it.
Heath Ledger created the Joker’s makeup himself using supplies he bought from a pharmacy.
It was also Ledger’s idea to leave traces of makeup on the Joker’s hands, as if the character had done the makeup himself.