I'm in disagreement with all the publicitiy stating that this story was considered unfilmable, and half expect that it's there to lower expectations. Yeah, all adaptations are a challenge, because you have to find a way to satisfy folks already emotionally committed to the material, while pleasing those coming to it for the first time. Yeah, adaptations of complex material is challenging, because you have to cut some without losing coherence. But adaptations from graphic novels have an inherent advantage in that you already have a terrific storyboard, which gets you a huge chunk of the way to the screen.