On another note, I found the graphic novel in Books A Million yesterday and flipped through it some. Much of what I saw corresponded well with the film. One thing I thought was really weird is that it was set in 1997, whereas the film is set sometime after 2015 (which is when Valerie said 'America's War' began in the film)
I thought it was rather odd that Moore would set such a crazy hypotehtical dictatorship only 8 years into his own future.