Documentary Filmography suggestions

I'll be teaching a documentary filmmaking class to juniors in High School at a school specializing in helping at-risk teens earn their diploma. Many of the kids have never seen a documentary. I wan to show 10 films.

I will definitely be showing "Restrepo," and I am in desperate need of 9 more films that might interest them. One additional problem is I have no money (of course) and stream most of the content on Netflix. So streaming is best.

Thanks!