IMDB - Top 50 Documentary Movies
The Internet Movie Database’s 50 highest-rated documentaries, as voted by their users. Since these are documentaries, they are not included in IMDb’s Top 250 (see http://www.listsofbests.com/list/1004 for those). Many of these documentaries would rank highly enough to be included in the 200 top-rated movies otherwise.
(Last update: July 27th, 2011)