The movie is Warner Herzog's Encounters at the End of the World, which I reviewed here. Here are the bits that explicitly deal with Natives or Native lore:
My questions about nature, I let them know, were different.
I told them I kept wondering why is it that human beings put on masks or feathers to conceal their identity?
And why do they saddle horses and feel the urge to chase the bad guy?
LONE RANGER: Hi-yo, Silver!
And after two years there, I changed my pace a little bit and decided to help the people of Guatemala, so I joined the Peace Corps, and there I worked in small business development.
Just realized that the world's not all about money.
Where I lived in Guatemala was in the northern part. It's a Kekchi Mayan village, 99% Mayan, and therefore nobody spoke Spanish. I had to learn the Mayan dialect, Kekchi.
When I first moved to Chisec, I was just out on a normal walk, and before I knew it I had six people with machetes chasing me down, wanting to talk to me. Turns out the little brother told them I was there to steal children. I was, however, not there to steal children.
They took me back to my--my judge and jury was the 14-year-old boy in the town who could speak both Spanish and Kekchi.
Luckily, they let me go, and we ended up being great friends over the two years.
HERZOG: The jury acquitted you.
ROWLAND: I was acquitted. I made it out of there.
HERZOG: But it could have been dangerous.
ROWLAND: It is, it is. And, you know, a story not too long ago is, a lady was just taking a picture of a child, you know, the same type of group of people with machetes, and she wasn't so fortunate.
She didn't make it out.
HERZOG: What happened to her?
ROWLAND: She was killed, by machete.
No, I don't think so. Actually, I think it was more of a commentary on the disconnect between Western and indigenous people.
PACHECO: It's funny, but I'm revealing my hands and they are very distinct, and I was told by my doctor who operated me that it is from the Aztec and the Inca's royal family.
HERZOG: To make a complicated story short, he ran into New Age ideologues who made insipid claims about black and white magic embedded in the grammar of this language. Hence, in this stupid trend of academia, it would be better to let the language die than preserve it. He had to destroy his entire PhD research.
JIRSA: So just imagine, you know, 90% of languages will be extinct probably in my lifetime. It's a catastrophic impact to an ecosystem to talk about that kind of extinction. Culturally, we're talking about the same thing. I mean, you know, what if you lost all of Russian literature, or something like that, or Russian, you know? If you took all of the Slavic languages and just they went away, you know, and no more Tolstoy.
HERZOG: It occurred to me that in the time we spent with him in the greenhouse, possibly three or four languages had died.
In our efforts to preserve endangered species, we seem to overlook something equally important.
To me, it is a sign of a deeply disturbed civilization where tree huggers and whale huggers in their weirdness are acceptable, while no one embraces the last speakers of a language.
It was as if spirits had to be invoked.
Herzog offers other clues about his theme:
our presence on this planet does not seem to be sustainable. Our technological civilization makes us particularly vulnerable.
"There is talk all over the scientific community about climate change.
Many of them agree the end of human life on this Earth is assured."
So the basic theme of Encounters at the End of the World is civilization and technology vs. the indigenous and nature. I don't know if Herzog literally thinks the earth is doomed, but he clearly thinks it's headed in the wrong direction. His solution is like mine--i.e., to encourage dreams and alternate modes of thinking. To appreciate nature and the indigenous and unexplored places of the world and mind. To note the ugliness and sterility of modern-day life, where people visit Antarctica only to set pogo-stick records.
I should've guessed Herzog would use Antarctica as a pretext for sending a message. In works such as Aguirre, the Wrath of God, Fitzcarraldo, and Where the Green Ants Dream, he's dealt with these themes before. His previous documentary, Grizzly Man, was about a guy who thought he could coexist with grizzly bears. A bear ended up eating him, of course.
For more on the subject, see Review of Encounters at the End of the World and Native Documentaries and News.
Below: Humanity is small compared to the mysteries and wonders of nature.