Here can you see this:
* Batman has a complete dark armor.
* Jonathan Crane’s enemy name is Scarecrow, but with this mask he looks more like a zombie.
* The Joker* got his hair and skin colour, when he felt in a bottle with chemicals. In the movie he uses only make-up.
* In the comics Harvey Dent’s complete left side of the body was burned out; in the movie it was only his left face side. (I think, that makes more sense.)
In the comics the one coin side was slashed, in the movie it was scarred by an explosion.
* Catwoman looks not so different like in the comics.
* Bane was smaller than in the comics and he uses no venom (a drug) to become so strong. And with this mask he looks a little bit like Hannibal Lecter.
* Poor Heath Ledger!
Seeing the film, he threw all my expectations out the window.
#1 Great art and contrast.
And #2... EWWW... Not that Dark Knight movies...