The Sound Barrier (1952)
Wealthy aircraft manufacturer John Ridgefield is determined to build the finest jet planes in the world. His problem is the sound barrier, which has yet to be broken. Ridgefield's daughter Susan condemns his aims as mere ruthlessness and becomes increasingly bitter towards her father after her brother Christopher is killed while flying. Then her husband Tony becomes Ridgefield's chief test pilot.
Film programs
Books with substantial mentioning of The Sound Barrier
| Douglas Brode Lost Films of the Fifties Secaucus, New Jersey, 1988 |
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| Frank N. Magill (ed.) Magill's Cinema Annual 1985, A Survey of 1984 Films Englewood Cliffs, New Jersey, 1985 pp. 621-625 
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Books with an entry on The Sound Barrier
| Ivan Butler Cinema in Britain, An illustrated Survey South Brunswick and New York - London, 1973 |