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Overview
Documentary explaining how double bilateral variable area optical soundtracks are recorded onto film and played back in cinemas.
Details
- Status
- Released
- Release date
- January 1, 1934
- Original language
- English
- Spoken languages
- English
- Production
- Gaumont-British Instructional
- Cast
- Noel Birkin
- Director
- Donald Carter
- Cinematography
- Frank Goodliffe
- Budget
- Not recorded
- Revenue
- Not recorded
- IMDb
- View on IMDb