A New Romance of Celluloid: The Miracle of Sound
- Urtea: 1940
- Herrialdea: United States of America
- Generoa: Documentary
- Estudioa: Metro-Goldwyn-Mayer
- Hitz gakoa: behind the scenes, audio recording, sound waves, promotional film, movie studio, short film, sound recorder, sound
- Zuzendaria: Douglas Shearer
- Aktoreak: Douglas Shearer, Greer Garson, Clark Gable, Hedy Lamarr, Spencer Tracy, Norma Shearer