This story has more twists and turns than a second-rate soap opera.

It's easily one of the freshest, sharpest and most enjoyable films of this year.

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

Watching it is like watching the spectacle of a class clown at their best: you laugh at their jokes, instigate their defiance, and "ooooh" when they get in trouble.