Boring, long, and too preachy.

It’s not bad or unwatchable but despite the amplitude of the spectacle, the end result is underwhelming.

The movie really just wants to entertain people.

If you're interested in the topic at hand, you should just watch it and judge yourself because the reviews have gone very biased by people that didn't even watch it and just hate (or love) the creator. I liked it, it was well written, narrated, and directed and it was about a topic that interests me.