About the film
Aluna is a 2012 feature-length documentary film sequel to the 1990 BBC documentary From the Heart of The World: Elder Brother's Warning. The first documentary showed an ancient Kogi tribe civilisation who emerge to offer their concern for people of the modern world. Younger Brother is urged to change or suffer environmental disaster.
After offering the warning, the Kogi retreat to their community hidden in the mountains of the Sierra Nevada de Santa Marta, Colombia.
From the film's Wikipedia article (CC BY-SA 4.0).