Phoenix, I loled.
So, I just read the book after hearing about this movie this morning. It is an extremely introverted story, and fairly dark. I have zero doubt that the film will be "inspired by" the book, rather than being the book in movie form; I just don't see it translating easily to film since at least 70% of what goes on is entirely in one person's head. Overall, I think I liked it, though some might find it... emotionally difficult. That's not a very good description, but I'm not going to spoil anything, so deal with it.
As usual, I will reserve judgement until we have reviews and I've seen a few trailers, but I'm expecting it to either suck or to succeed purely on spectacle. In general, movies ALWAYS have trouble capturing the depth of their source material. In specific, I just don't think this is a story that will work as a movie without extensive (high quality) rewrites and some pretty strong performances from everyone involved. But, I do tend to be pretty hard on movies.