500. The Joker (Heath Ledger, Brokeback Mountain) likes people with a little fighter in them.
501. Bruce Wayne aka "The Batman" (Christian Bale, 3:10 to Yuma) saw what he had to become to stop men really dangerous like The Joker.
502. The Joker believes that madness is just like gravity, but all it just needs is a little push.
503. The Joker had a wife as beautiful as Rachel Dawes (Maggie Gyllenhaal, Stranger Than Fiction), who tells him to smile more because he used to worry so much.
504. The Joker's wife used to gamble, and got down deep with the sharks. They carve her beautiful face. Without having money for surgery, she couldn't take it. Because of this, The Joker wanted to tell her that he still loves her even with the scars. So he put a razor in his mouth and put some scars on his face, she didn't stand to look at him and left him.
505. The Joker likes his job. He likes it.
506. Because Gotham City needs a better class of criminal, The Joker is going to give it them.
507. It not about what Harvey Dent aka Two-Face (Aaron Eckhart/Meet Bill) wants, it's about whats fair!
508. The real Batman is not wearing hockey pads.
509. Harvey Dent doesn't rely on chance, he makes his own luck.
510. If you are good at something, you should never ever do it for free, as said by The Joker.