Just perfect...

A lot of perfectly good film show their cards early, establish a unique premise and let the audience explore a topic at a leisurely pace, without much in terms of surprise. this film is not one of those films.

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

This is one of the few movies I've ever seen where the whole audience broke into spontaneous, loud applause a third of the way in.