The biggest problem with this movie is it’s a little better than you think it might be, which somehow makes it worse. As in, it takes itself a bit too seriously, which makes most of the movie feel kind of dull.

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

Strong acting helps the film overcome an uncertain premise and create characters that hold our attention absolutely.

There's a more than satisfactory amount of boom-boom in the movie's trim running time.