What are some of the best documentaries you've seen, and what did you learn from them?

Warren buffet .It is available on YouTube and Hotstar

I can't name because most of the time I watch netflix crime documentaries. Other type of documentaries I watch are usually on food or travel. Einstein and the bomb was good MH370: The Plane That Disappeared CONSPIRACY

It’s not exactly a documentary but a movie that looks like documentary, “Into the wild”. Have you heard about it ?? It’s about life, meaning and values.