Tells a fascinating and unsettling true story, and does so well, without pretending to have all the answers.

One of the most extraordinary films you will see this year. Take that as you want.

This is ultimately a movie about the very bad things that can happen when we don't address our unease, when we just try to brush it off, whether that's to fit in or to preserve our self-image.

It's simply great fun, a winsome film and an occasionally over-the-top luxury fantasy that never flags.