EXTERNAL URL: IMDB | TMDB
Languages: English
Genres: Horror, Sci-Fi,
Runtime: 1:18:00 Hour
Cast: Robert Shayne, Joyce Terry, Richard Crane
Directors: Ewald André Dupont
Rating: 4.4 (701 Votes)Year: 1953
Summary: Professor Groves, an expert in prehistoric life, proves his theories with an extract that'll regress a cat to a saber-tooth tiger and man to a Neanderthal.
