- Country: UK
- Genres: Documentary, Short
- Release:
- Director: Alfred Hitchcock
- Writers: N/A
- Language: English
- Stars: Alfred Hitchcock , Anny Ondra
- Runtime: 1 min
- Awards: N/A
- AKA: Prueba de sonido para Chantaje (Venezuela) , Sound Test for Blackmail , Sound Test for Blackmail (United Kingdom) , Звуковий тест для фільму Шантаж (Ukraine) , Prueba de sonido para chantaje (Argentina)
- Plot:
Alfred Hitchcock makes an experiment in this short film where he uses the sound device for the first time in a motion picture of his own. This is a sound test where the master of suspense and actress Anny Ondra have some humored dialogues, just checking the sound quality designed for Hitchcock's first talkie picture, the classic Blackmail (1929).
- IMDB:tt0249159
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