Yukihiki Tsutsumi (the Trick films) isn’t through with 20th Century Boys by a long shot. The third and final film in the trilogy just popped up in trailer form over at the official Japanese website, so go ahead and click on the link in the next paragraph if you’re ready for it. As for me, being only one volume deep in Naoki Urasawa’s manga is holding me back for fear of spoilers. Let me tell you, even if people tell me there aren’t any spoilers in the trailer, I still won’t believe them!
As they explain over at ANN, after you click this link and sit through the Flash intro, you just need to select the fourth and last item in the center-left menu.