Director Jack Hill named the sadistic prison warden "Dietrich" after German producer Erwin C. Dietrich, with whom Hill had had a very unpleasant experience after Dietrich hired him to shoot a film in Switzerland.
In the sequence in which Judith Brown is tortured by having a snake dangled over her head, only a pane of glass separated Brown from said snake.
A graphic lesbian scene was shot, but cut from the final finished version of the film.
A Filipino porn actress was originally cast as Ferina, but left after the first day of shooting.
Roberta Collins' infamous "Get it up or I'll cut it off" line was improvised on the spot by director Jack Hill. - IMDB
Not to be confused with ...
See more about HOT women locked away on an island of sex and torture at: Dynamite Baby, Grindhouse Dynamite!
