So I just saw this last night. I have to say, I wasn't too impressed. If you have read the book you are in for loads of disappointment, but even if I pretend it had a different title I still wasn't too in to it. I didn't mind the first half of the movie, however
There is almost no connection to the books. It basically took the entire point of the book, placed it firmly on the counter, and took a huge dump on it.
The whole second half with the WHO seemed really lame to me. People were laughing at inappropriate times because the zombies were just kind of dumb. Also, the whole 'camoflauge' thing didn't do it for me.