The Crown Film Unit was a British film production unit established in 1940, primarily to create documentaries for the government during World War II. It aimed to promote morale and inform the public about the war effort, producing films that highlighted various aspects of British life and military activities. The unit was part of the Ministry of Information and was known for its high-quality productions. Notable filmmakers, including John Grierson, who is often regarded as the father of documentary filmmaking, were associated with the unit. The Crown Film Unit continued to operate until the late 1950s, contributing significantly to British documentary cinema.