Evans, Alun. Brassey's Guide to War Films. Dulles, Virginia: Potomac Books, 2000. . Perry, George. Forever Ealing: A Celebration of the Great British Film Studio. London: Pavilion Books, 1991. . External links Review of film at Variety 1944 films 1944 war films British war films British aviation films 1944 directorial debut films British black-and-white films Ealing Studios films 1940s English-language films Films about shot-down aviators Films directed by Charles Crichton Films produced by Michael Balcon World War II films made in wartime