geez
well at the comic con yesterday, there were dollar notes found with the mouth and eyes drawn over to look like the joker and on the back written on it was "why so serious?"
so people went to
www.whysoserious.com and it was a website by the joker telling people to meet at this certain point when the countdown hits zero
people were on the net at the same time asking questions to people on the ground at the location
then after 10 riddles the picture and trailer was revealed.
it was pretty fun but was lagging sooo much