Now this is an interesting video that someone put together.
This seems to suggest that Hans Zimmer's music score for The Dark Knight was heavily influenced by the French musical, Edit et Marcel.
The video starts of with the music to Edit et Marcel and then goes into Zimmer's score.
Zimmer is also working on The Dark Knight Rises and came up with that famous chant that we can all be apart of.
Seems likely; check it out below.
The Dark Knight Rises hits theaters July 20th, 2012 and is directed by Christopher Nolan starring Christian Bale as Batman, Tom Hardy as Bane, Anne Hathaway as Selina Kyle/Catwoman, Gary Oldman as Commissioner Gordon, Morgan Freeman as Lucius Fox, Michael Cain as Alfred, Juno Temple and Josh Pence as a young Ra's al Ghul.
Head on over to the Cosmic Book News The Dark Knight Rises Movie Hub for even more news, trailers and images.