I recently watched Gram Parsons: Fallen Angel (2004) an outstanding documentary about the late musician. It’s very balanced, showing both points of view about the controversy over his body after his death. It has extensive interviews with musicians who worked with him including Chris Hillman and Parsons’ friend Keith Richards, There are many interviews with his family members who don’t gloss over the problems he and his relatives experienced. There is a fine bonus on the DVD where the director recounts how the film was made over a long period of time.
Also on DVD (which I have but haven’t watched yet) is a film of a tribute concert to Parsons from 2004.
Both films are on YouTube – see the links below.
Sad! 