I don't know why you're all talking shit about Akira, it's one of my favorite films of all time, and probably my favorite animated piece of all time. There's just so much depth to it. I love how it jumps to each echelon of society (the government, the street gang, the rebels, the scientists, etc), so you see how the events unfolding affect everybody. The animation style is probably my favorite among anime, as it transcends the generic style you see in every fucking japanimation ever.
I can't see this movie turning out too well. I'm excited to see it, but I doubt it will work very well in live action. Plus, I can see it turning into an Americanized mindless piece of shit. I hope they prove me wrong though. The fact that they're drawing from the original manga, and that it will be spread over the course of two films, suggests that maybe it will be a little more deep than your typical Hollywood garbage.