There have been many "favorite movie" posts lately... but we have ignored documentaries. I have much less experience in this genre, but I really enjoy when I do get an opportunity to see a good documentary.
Here are a few of my favorites
Bowling for Columbine http://www.imdb.com/title/tt0310793/
Educating Peter http://www.stateart.com/productions/...ducatingpeter/
Living Dolls http://www.documentarychannel.ca/pro...asp?showID=119
Balancing Act http://www.documentarychannel.ca/doc...g%20Act&id=160
Winged Migration http://www.imdb.com/title/tt0301727/
If I can think of more I'll add on to the list