It isn't all that great, actually. Really cheesy and very predicable of how certain scenes are gonna turn play out. However, I guess that's the charm of it all, because I would consider this one of my guilty pleasures.

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

The joyful confection is coated in a sparkly gloss, bright enough to gleam from the darkest, most cynical corners.

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