I like Zeitgeist because it gives me a good litmus test to judge people by. If someone tells me they like the movie, then I know that I should probably stop talking to them and that they are not someone I would enjoy spending time with. For that, I must think the writers and producers of Zeitgeist, I don't know where I'd be without it.
I do the exact same yet opposite thing.
If someone suggests that they're averse to its message then I know that as much as we might have in common and as much as we might really get along and have a lot to share and learn from one another, I should find a way to drive them away from me because when the tanks start rolling in and the army marches past, I don't want any of those soldiers knocking on my door on a tip from some backwards *******.