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

It is both painfully honest and laugh-out-loud funny at the same time.

Unshakable, witty and deeply felt, the film will be paying emotional dividends for a long, long time.

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