^Do you remember the old batman cartoon series from the mid-nineties, with lots of cameos from various villains? I thought it was genius at the time, and I definitely always settle for a lack of continuity if the next episode is mind-blowing. One of the things that made Dark Knight great was the lack of continuity in any of the Joker's history with regard to anything relevant to the actual Batman stories of the past. He was just a crazy fuck, as one of my friends who saw the film before me said, with no back story and no explanation as to how he is able to fund or engineer these massive set-ups. That made his character all the more fascinating, and I'd settle on speculating as to what his actual story is forever - if they come out with another comparable villain in the next film, whether it be a true sequel or not.