I cannot think of one single thing that I would change about this film. The acting is incomparable, the directing deft, and the writing poignantly brilliant.

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

It’s not bad or unwatchable but despite the amplitude of the spectacle, the end result is underwhelming.

A film of deceptively outspoken contemporary relevance, this is cinema at its most alert, alarming and alive.