OJ made in america is probably the best doc everr made.
Any louis theroux is good

edit: also does anyone have any murder/crime documentary suggestions (not making a murderer)

The Mask I Live In, Its about the masculine stereotype thats pushed on men

BBC's "Frozen Planet", stunning from beginning till end.

Amanda Knox the new Netflix docu

this omg

1. Capturing The Friedmans
2. The Imposter
3. Just Melvin, Just Evil

There's a documentary that follows this former journalist and his ongoing heroin addiction as well as his attempt to go cold turkey. The interesting thing is that he only got into heroin in the first place through filming his own documentary about hard drug addicts for the same TV channel a few year prior.