Old mythologies are not so different from Christianity if you think about it. All the religions make people believe in fantasy stories without the evidence to prove that they actually happened. All religions also make people believe in one or more god(s) that people worship without checking or proving that they actually exist. This film exposes and disproves all aspects of Christianity and still people are too stubborn to just accept that they are wrong because they are afraid of change.
Part 1 offends a lot of people but they are saying that Jesus should be taken just as seriously as thor, odin, ra, and all the other mythological Gods. They are all just as made up. Other than the gospels we have zero historical records of Jesus' life. The gospels were written at least 100 years after his death. That's about two generations back then, as the average life span was like 40-45. They are NOT that accurate, nor are they factual.
Haven't seen Zeitgeist yet?
You can find the video on Youtube for free!