I've seen these four from the one pointers, three good and one excellent.
Samsara is of a certain style of filmmaking, if you like it then you'll like the film. Watch No No if you like pitchers on acid throwing no hitters (it's a pretty cool story). Watch Dear Mr Watterson if you like Calvin and Hobbes (who doesn't?). And 5 Broken Cameras if you want to see quality filmmaking (which in any other year could have easily won best documentary, but that year went up against Sugar Man). Or watch all of them regardless because they're all worth the time.
Samsara is of a certain style of filmmaking, if you like it then you'll like the film. Watch No No if you like pitchers on acid throwing no hitters (it's a pretty cool story). Watch Dear Mr Watterson if you like Calvin and Hobbes (who doesn't?). And 5 Broken Cameras if you want to see quality filmmaking (which in any other year could have easily won best documentary, but that year went up against Sugar Man). Or watch all of them regardless because they're all worth the time.
I watched Dear Mr Watterson for this list, and I really wanted to put it on my list because I love "Calvin & Hobbes", but it didn't have an interview with Bill Watterson. I understand that they tried to get one, but he just doesn't want to give any interviews, but it just made the documentary feel like it was lacking something important.
National Geographic: The Skyjacker That Got Away was my #25. If you ever wondered whatever happened to skyjacker DB Cooper, this documentary has some interesting theories.