It's not great by any means, but it's a pretty good movie that didn't leave me filled with regret for investing time in it.

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

Excellent and certainly provocative... If nothing else, the film is a real conversation starter.

One of the film's great tricks is that, for a time, you think it will go down a rabbit hole of unrealistic glorification.