It’s an especially fun movie from a director and cast who are clearly having a good time allowing themselves to let loose.

It's hard to see any effort in the film. There's no comedy to speak of, no real drama and, worst of all.

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

While it doesn't offer any answers, it both thrills and makes you think.