- Country: Belgium, Netherlands, UK, USA
- Genres: Drama, Mystery, Sci-Fi
- Release: 1976-10-01
- Director: Sandy Whitelaw
- Writers: Judith Rascoe , Alva Ruben , Sandy Whitelaw
- Language: English
- Stars: Hiram Keller , Tina Aumont , Klaus Kinski , Fons Rademakers , Eric Schneider , Frans Mulder , Lyda Polak , Joan Remmelts , André van den Heuvel , Onno Molenkamp
- Runtime: 85 min
- Awards: N/A
- AKA: Lifespan - Das Geheimnis des Lebens , Lifespan (Netherlands the) , El experimento (Spain) , Продолжительность жизни (Russian Federation) , Lifespan (United Kingdom) , Le secret de la vie (France, French Republic) , Il patto con il diavolo (Italy) , Lifespan , Esperanza de vida (Argentina) , Esperanza de vida (Panama) , Lifespan (United States of America)
- Plot: A doctor trying to develop a serum to lengthen life tries his formula out on the unsuspecting residents of an old-age home.
- IMDB:tt0071756
Lifespan Cast · · · ALL
Sandy Whitelaw
Director
Hiram Keller
Dr. Ben Land
Tina Aumont
Anna
Klaus Kinski
Nicholas Ulrich
Fons Rademakers
Prof. van Arp
Frans Mulder
Pim Henke
Joan Remmelts
Family doctor
André van den Heuvel
Felix Dolda
Onno Molenkamp
Director of old age home