Simple and well acted, it has tension enough to knot the stomach.

There are moments that feel comical, some horrific, and some downright inspiring but the tonal shifts hardly matter as the end results come to a film that's perfect for this time.

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

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