Documentaries

I'm not a big fan of movies, but I enjoy a good documentary. The best documentary I've watched to date is Koyaanisqatsi. What are some of your favorite documentaries, and what are they about?

If anyone posts a documentary, and you've seen it, feel free to comment on it, and what you thought of it.

I look forward to watching some of your suggestions.

1-Koyaanisqatsi
2-King of Kong
3-Super Size Me
4-Block Party
5-When We Were Kings
6-Endgame
7-9/11 Truth Rising
8-Religulous
9-Out of The Blue
10-Jazz
11-Thunderbolts of The Gods
12-American Pimp
13-What the Bleep Do We Know!?
14-Planet Earth
15-Sicko
16-The God Who Wasn't There
17-Super High Me
18-Afropunk
19-Zeitgeist
20-Esoteric Agenda