Erm. What does this have to do with World War Z apart from zombies existing?
It's not a UN-documentary based around "reports" and "eye witness testimonies" by different people from all over the world, from all the different perspectives and war zones. Instead, it's an action movie centered around a family and mainly a father.
It doesn't seem to be about the efforts of rebuilding, of adapting to the zombie apocalypse, about developing new/old military tactics, about the hardships of human survival in a collapsed world where the cold of winter, the lack of food or proper clothing and other equipment or looters are just as likely to kill you as the zombies themselves.
It's not about the reestablishment of nations, the communications, the worldwide strategies for human survival and reclaiming of the world. Instead it's, just like so many other zombie movies, about the outbreak. About the chaos. Not about the silence and despair that followed it.
Sorry, but this looks like any other action zombie flick, just with the name World War Z slapped on for brand recognition. It's probably not a bad zombie flick. It has big name actors, possibly some good CGI and production values. But it's not World War Z.
Also, human zombie pyramid. What.