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When a group of isolated people in the Greek mountains set off a cave explosion, they are menaced by an invisible shrieking dinosaur that had been buried for eons
- Type
- Film
- Status
- Released
- Release
- October 8, 1967 (56 years ago)
- Alias
- El sonido de la muerte · Sound from a Million Years Ago · The Prehistoric Sound
- Language
- Spanish
- Origin
- Spain
- Production companies
- Zurbano Films
- Runtime
- 1h 31m
- Rating
- Unrated
