I want to watch an important documentary.
What is is about?
It's about the problems of human civilization and how we humans destroy each other.
It does sound interesting and it seems like you will learn a lot. It is good to learn how the world works and become a better person.
I don't think it's that good. I'm going to watch something else instead.
If you really want to learn something I think you should try it out. It could be a lot better than you think it is if you give it a chance.