This totally made me jizz and crap my pants simultaneously. If you're an uber-comic geek like me, and especially if you've read "The Ultimates", created by Mark Millar and Bryan Hitch, STAY AFTER THE CREDITS TO GET THIS LITTLE EASTER EGG. YOU WILL END UP THE SAME AS ME: AN ECSTATIC MESS (in your pants).
And as a side reference, if you were interested in looking up the lyrics to Black Sabbath's "Iron Man", then prepare to be mind-fcked by the story behind the song. I totally think that should be turned into some sort of sci-fi novel/short story/TPB or something. Maybe an episode of the "Twilight Zone". It's got that creepy ironic ending to it, same as "Planet of the Apes".
UPDATE: As of today, 11 May 2008, I've seen the movie 3 times in movie theaters.