Forget all of those pretensious, uptight, overly-critical people who can't just relax and enjoy a movie. I read the book too and I was smart enough to know, before going into the theater, that this is not the book. There are elements of it for sure, but it is great all on it's own. Great action, lots of suspense and the visuals are amazing. Everyone should see World War Z. I will definitely see it in the theater at least once or twice more myself.