Health ledger was the star of the film. He just stole all the attention form batman.
The story and it's plot were amazing. The writer has done really a great job on the scripting. The dialogues were great especially
Joker's "why so serious".
The film also build a good suspense and thrill. Joker showed his madness and also made a scary image on viewer's mind.
Hence the movie is a blockbuster and can be watchee many times and can be watched several times.
