Claimed similarities between Jesus Christ and Horus and other Gods
I believe the video excerpt is from Zeitgeist (the movie). The Wikipedia article on the movie suggests that Part I (the religious part) is only "half" true:
Skeptic magazine's Tim Callahan criticizing the first part of the film (on the origins of Christianity) wrote that "some of what it asserts is true. Unfortunately, this material is liberally — and sloppily — mixed with material that is only partially true and much that is plainly and simply bogus. […] Zeitgeist is The Da Vinci Code on steroids." Acharya S (aka D.M. Murdock), a source and last-minute consultant on the official version of the film, responded to Callahan's critique in an article on her publishing company's website. She writes that "it is a curious fact that writers who toss around the words 'sloppy', 'garbled' and 'nonsense' are often guilty of these very things themselves" and that Callahan's "declaration that much of the material in ZG is 'plainly and simply bogus' is false." Callahan responded to Acharya's rebuttal with a counter-rebuttal published in his website's forum.
How "true" is this?