Also Read: 33 Classic World War II Movies, From 'Stalag 17' to 'Dunkirk' (Photos)“The War Below” is based on true events and centers on a group of British miners recruited during WWI to tunnel underneath no man’s land and set bombs from below the German front, all in the hopes of breaking the deadly stalemate of the Battle of Messines.Watts, known for the short film “The Lost Emperor,” is making his feature-length directorial debut on the film. He co-wrote the script with Thomas Woods.