Disturbing yet enthralling

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.

Great example of an old-fashioned, pure-at-heart escapist event movie that doesn't pretend to be anything that it's not and has boat loads of fun being its own ludicrous self.