Brilliant, wrenching, gorgeous movie. Wow. Leger was beyond the call of incredible, and I do think there are some goodies in there for anarchists.
*spoilers*
What I found most interesting about the movie, were the consequences for the *good* guys. The Mayor's life is threatened. Harvey Dent has to listen to his love die, and becomes Two-face. Countless policemen are killed. Others are forced to betray their friends for fear of harm to their loved ones. Rachel Dawes is killed. Gordon gets his family threatened. His wife has to think he's dead. He winds up having to hunt down his friend. Bruce Wayne wants to retire as Batman, but he can't, and in addition his persona becomes a hated murderer. While the movie is not actively painting a pretty picture for anarchy, the picture it paints for those involved in the legal system is downright gruesome. This movie pulls no punches when it comes to consequences - no one gets a happy ending, not even the Joker. :(
A very interesting theme that runs through the movie, which is left largely unresolved is the obscuring of truth. It starts out innocently with Harvey's double headed coin. Progresses a bit with Batman covering up for Harvey when he finds him beating the Jokers henchman. Batman could have told Two-face that he went to save Rachel, but that the Joker had given him wrong directions. Alfred burned the letter from Rachel, and while I'm positive there are others, there's the big one at the end, where Batman takes the fall for Two-faces murders. It will be interesting to see how this stuff translates into the next movie.
I also thought the bit on the boat, where the people voted to blow up the other boat, but no individual could go through with it was kind of touching, really. :)