As somebody who had not heard any of this before, it became a curious phenomenon to sit and watch a film and slowly have the realities begin to click into place.

This is a must-see and one of the best documentaries - and films - of this year.

It is encouraging that the film ends so strongly.Otherwise, it wouldn't have been a particularly memorable film

.Like the great film, it's made with a great deal of visible affection both in front of and behind the camera.