I cant watch the trailer at work, but ill check it out and offer my two cents in regards to book story vs. movie
however, I will say, hard to tell an entire movie plot based on a two minute trailer, no? The book is a bunch of short stories about the same occurrence (Z outbreak) in diff. parts of the world....so when I first heard of this project I was curious how they could make a movie out of it (my original idea was take one character/group and see how they are surviving the situation and focus on them, while still showing various other groups/stories throughout the movie around diff. parts of the world?)