WWZ is suppose to be a prequel to Max Brooks book WWZ. For fans of the book, some will be disappointed that basic elements of the story have been changed by the producers to make for a cinematic friendly story. They were incorrect. By doing this they have effected future installments to the point that they will insure major plot problems. As a stand alone movie, it is easily the largest scope zombie picture ever made, where as most zombie pictures take place in dark locals and small confining rooms, this one is in bright light with the world as the canvas for the story. The family story line of Brad Pitts character is unnecessary, or the fact that he is a ex UN employee. All it does is add the unbelievable detail of the fact that the US President has been eaten, the VP can't be found but the US Navy is sending a helicopter to Newark, which on a good day looks like it's had a zombie attack, to pick up Pitt and family. As far as the zombies go they are done very well, and the action sequences and top notch. There are some minor credibility problems with the story, and the cinematography looks like a made for TV movie. Overall it's worth the price of admission for a good evening of zombie fun.