Titicut Follies - by Frederick Wiseman to date the best documentary I have seen about mental instituitions
http://filmfanatic.org/reviews/?p=3303Domestic Violence - by Frederick Wiseman, less arty than Titicut, but it has everything you expect from such title.
Cadavres - Spanish documentary with arty elements. A collection of morbid images between disturbed people and old morgues that look quite unfit to today hygienic standards. I loved a part where corpses get extracted from underground cells where they apparently stand in erect position drowned in an unspecified liquid.
Attacco Alla Democrazia - Giuliano Montaldo. One of Italy's finest arthouse director released this very intense documentary regarding the presumed connections between secret services, right wing terroristsm ecc.
Montaldo had many hassles for shooting this and the movie completely disappeared apart from RAI 3 (left wing Italian state tv station) showing it at late night once.
Mass slaughters, bombings, fights between militants. I have been sampling a lot from this.
Unfortunately somebody stole my copy...
The movie has many imprecision and follows one direction, but it was a damn good example of how a documentary may be considered something more than an "informative" piece. I virtually suggest all his other movies.
Let me die a woman - a classic documentary about sex change operations in the 70's. Features graphic images of surgery, but the best part are interviews with patients.