That’s the thesis put forth by the producer/director of The God Who Wasn't There.
He is a former fundamentalist Christian who essentially accuses the entire religion of being based on a questionable myth.
If that’s not enough to motivate you to watch it, not sure what else is there.
Felt sort of “Da Vinci Code-ish” at times.
As a non-Christian, I was really wondering how my Christian friends would react/respond to this one.