Why so serious?

I felt really compelled to make my own background of the new batman movie so i did. I reckon this is probs the best movie i have ever seen. maybe its just me? (i watched it twice on its release date XD) Just went to the official movie site, got a picture of the joker and put the phrase that i reckon made the movie. Why so serious? I also make this background out of respect and as a tribute to the great aussie actor who died sortly after this film was completed. (heath ledger) As i see it this is by far his most convincing and best role ever played in a movie. RIP heath ledger.