All documentaries by: Scott Noble (available free at his site <a href="http://metanoia-films.org/" rel="nofollow">http://metanoia-films.org/</a>), Patricio Guzman, Werner Herzog, Adam Curtis, The Yes Men.<p>Other great documentaries: Man with a Movie Camera, Sherman's March, Burden of Dreams, Bus 174, My Winnipeg, How to Start a Revolution, Merchants of Doubt, Silenced (2014), the Corporation (2003), Man on Wire, The Parking Lot Movie, Land of Look Behind, Intangible Asset No. 82, Brasileirinho, Jodorowsky's Dune, Revolution OS, Facebookistan, The King of Kong, Kumaré, McLibel, Harlan County USA<p>Why? Because they're amazing, important, will change your life etc. Sorry I don't have hours to go into detail. Enjoy!<p>ps I found a lot of these by googling best documentaries lists, IMDb lists etc. I judge whether to watch movies/docos by reading 2 or 3 pages of user reviews on IMDb, occasionally Ebert or Urban Cinefile etc also.