Even though it seems to be a great big budget epic take of the end of mankind once again with Brad Pitt. Does it have to be with CGI. They should have done a version like the TV show The walking dead! They obviously see that the public has taken a liken to the TV show. But they use CGI much like I am Legend which was bogus. And was also used for the other Will Smith movie I Robot which kind a worked for that but was a rerun from I am Legend.