The zombies themselves seemed really inconsistent in the movie, in the beginning and the end they were actually a threat but when you saw them in the middle it was like they were just there for some background images while they tried to pull together a story. Don\'t get me wrong, I enjoyed the movie (and the way they used type throughout), but I have to agreee with THX and Eik, just got kind of tired in the middle.
Thoroughly enjoyed the celebrity cameo though, even if it was extremely contrived.