3 random categories, 3 of my recommended.
Dramedies
Punch Drunk Love
Visioneers
American Beauty
Documentary
Grizzly Man
The King of Kong : A Fistful Of Quarters
The Devil and Daniel Johnston
Movies About Movies
Ed Wood
Adaptation
American Movie
Honorable Mentions : ANVIL! The Story Of Anvil, Burden Of Dreams, Hearts Of Darkness, Big Fan.