Last Breath

Last Breath is a 2019 British documentary film directed by Richard da Costa and Alex Parkinson. It relates the story of a serious saturation diving accident in 2012, when diver Chris Lemons had his excursion umbilical cable severed and was trapped around 100 metres (330 ft) under the sea without heat or light, and with only the small amount of breathing gas in his bailout cylinder.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.