The movie was totally focus on the Joker (Health Ledger) who passed away beginning of this year before the movie was release in July 2008. I think this movie was more like a tribute to Health Ledger for acting carrier and the remembrance of his acting career. After watching this movie for the second time, I think Health Ledger did a good job bringing out the character of Joker in the movie.
The morale of this movie was actually showed at the ending part of the movie when Harvey Dent (Gotham's true hero) later on turned into a villain after he was brainwash by the Joker. It shows that even a true hero who fight for justice can fall and become a villain and started killing people.
That's very sad.
Finally at the last scene, we see batman running from the police and the dogs. The scene looks more like the police were chasing after him. Actually even until now I can't quite understand that scene, why batman has to run? He did nothing wrong. Batman was suppose to be the hero.
Overall, I think the movie is great and worth watching. I will rate it as 9/10. 10% was for the the scene that I could not understand..'Why on earth Batman the hero has to run? Did he become a villain too like Harvey Dent? ' :P
~Prudence