Analysis and Response to Zeitgeist
Alwaysbeready.com has a nice piece online: Analysis & Response to Zeitgeist, where you’ll find some of the claims in the video followed by helpful responses and quotations by scholars, historians, world religion experts, Christian apologists and others as well as links to in-depth articles and books that offer a much more thorough refutation of many of the errors in the first part of the film.
Enjoy.