As somebody who had not heard any of this before, it became a curious phenomenon to sit and watch a film and slowly have the realities begin to click into place.

if their story seems completely bonkers, almost like a feverish work of fiction, you ain't heard nothing yet.

While it is a pity that the story wasn't told with more visual finesse, this is trivial compared to our real-world problems. It takes a good movie to put that into perspective.

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