It's an eerily skilful performance by Garfield, making it easy to imagine that he really is trying to master the art of speech by regulating his flow of available air.

Robin's story is certainly a tale of near-triumph over adversity, and the director manages to keep cheap sentimentality at bay. In many ways this is a very English story about intestinal fortitude and the stiff upper lip.

The producer of Breathe, Jonathan Cavendish, is the son of the incredible couple whose story is immortalised in the movie, giving it a weighty, personal connection that transcends some empty exercise in virtue.

A moving film that examines the effects of a debilitating illness to the afflicted and their families, as well as the physical and emotional strains that come with it.