The Sound Barrier

After his aircraft company's groundbreaking work on jet engine technology in the World War II, John Ridgefield (Ralph Richardson), its wealthy owner, employs test pilot Tony Garthwaite (Nigel Patrick), a successful wartime fighter pilot to fly new jet-powered aircraft. Garthwaite is hired by Ridgefield after marrying Ridgefield's daughter, Susan (Ann Todd). Tensions between father and daughter are accentuated by Garthwaite's dangerous job of test flying. In a noteworthy illustration of the new technology, Susan accompanies Garthwaite on a Ferry flying assignment of a two-seater de Havilland Vampire to Cairo, Egypt, returning later the same day as passengers on a de Havilland Comet.