it's not a documentary, it's a dipshit liberal movie that almost explicitly advocates for eugenics and the genocide of poor people for being stupid, as if getting rid of the poors and leaving only the "intelligent" people behind would make the world a better place. completely lacks any form of class analysis
throughout my life, the people who seriously think something like "y'know, the real problem with this country/world is that everybody/everything is just so stupid! people are dumb, panicky animals. they don't know what's good for them and they keep doing stupid shit for whatever reason!" are, ironically, the most idiotic people I've ever had the displeasure of meeting or talking to.
fossil fuel companies aren't polluting the atmosphere and destroying biodiversity because they're "dumb", they're acting according to their material interests.
people don't vote for reactionaries because they're incapable of understanding basic economics, they do it because of co-ordinated media campaigns that exploit mental vulnerabilities that literally every single one of us on this website also possess (none of us are immune to propaganda), are tired of the status quo neoliberal economics but cannot find any other way of expressing their displeasure than in a reactionary way, and/or materially benefit from the imperialism and exploitation that those reactionaries reinforce.
(note that this doesn't mean we shouldn't fight reactionaries, we absolutely 100% should, but they weren't born like that and it's not "human nature" either.)
leaders like Bush don't invade foreign countries because they can't understand that they're doing something "dumb" and hurtful, they're doing it to benefit their military industries, exploit the invaded countries' people and resources, loot and pillage them, and spread chaos to prevent unified oppositions from being able to take on US interests