Butterfly

Butterfly is a documentary film directed by Doug Wolens about the environmental campaigner and tree sitter Julia Butterfly Hill who gained the attention of the world for her two-year vigil 180 feet atop Luna, an ancient redwood tree preventing it from being clear-cut. The film first aired on PBS in 2000.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.