Toward the Unknown (1956)
Genres: Drama, War
Cast: William Holden, Virginia Leith
Toward the Unknown, originally called Flight Test Center and titled Brink of Hell in its UK release, is a 1956 American war film about the dawn of supersonic flight filmed on location at Edwards Air Force Base. Starring William Holden, Lloyd Nolan and Virginia Leith, the film features the screen debut of James Garner.