Rape of Europa - A doc about Hitlers fascination with art. I knew he was a failed artist, but his love of artwork actually affected his invasion plans. He would hand out lists of artwork he wanted his soldiers to steal.
Loose change 9/11 - A controversial 9/11 documentary. Very interesting coincidences happened that day.......
Broad Street Bullies if you like hockey.
Food Inc. if you want to never eat fast food again.
Iron Maiden Flight 666 because it's Iron Maiden
Religulous, Zeitgeist, Restrepo, Mugabi and the White African, Love the beast, and of course The Corporation are necessities with a documenary collection.
If you can count series as docs as well the Ross Kemp on gangs amd the Long Way Round are really good.