The film was considered lost until a copy was discovered in a disused Army base in India in the early 1990s.
After Robert Donat's character is seemingly killed in the World War I film watched by the recruits, Harry Fyfe quips, "He didnae die at all. He's comin' here next week in 'Young Mr. Pitt'." This refers to Donat's role as the title character in The Young Mr. Pitt (1942), which was also directed by Carol Reed, indicating that he was playing himself starring in the film within the film.
Peter Ustinov's writing debut.
It was originally intended as a training film.