The film is also distributed in Germany, France, Greece, Australia, the Middle East, South Korea and Japan.

[4] Based on a true story, the film is about a group of British miners (known as "Claykickers" or “Manchester Moles”) recruited during World War I to tunnel underneath no man's land and place mines below the German front for the Battle of Messines in 1917.

10,000 German soldiers were killed instantly after the detonation of explosives beneath their lines.

[4][5][6] The War Below was released in theaters and digital platforms in the United Kingdom on September 10, 2021.

[8] Writing in The Sunday Times, Kevin Maher awarded the film 3 out of 5 stars and stated it is "a fascinating Great War side story and a gritty central turn from Sam Hazeldine..."[9] Writing in The Guardian, Phil Hoad described the film as having "an innately fascinating story, even if the underpinning is of unsound construction in places.”[3]