Pamela Lincoln and Darryl Hickman, who play the young suitors, actually got married on November 28th after the Tingler release on July 29th 1959. They had two children, and divorced on December 8th, 1982.
The earliest mainstream film to depict an LSD trip.
William Castle toyed with other ideas to frighten audience members, in addition to 'percepto'; among them: rolling bean bags to brush against the legs of audience members, speakers mounted at different areas that would give a 'screech' when the tingler appeared, and possibly even using 'shills' to operate some type of mechanical device to tickle the legs of the audience members; but the only viable way of doing it was by attaching buzzers in select seats to coincide with the appearance of the tingler- 'percepto'.
The Weirton Daily Times (Weirton, West Virginia) ran a UPI item about Judith Evelyn on August 8, 1959: "Judith Evelyn, whose speaking voice is one of the finest in the acting profession, took lessons in sign language for her role as a deaf-mute in Columbia's 'The Tingler.'" Her signing was understandable.
Director William Castle confessed in his biography that he buzzed at least twenty millions of behinds with the electric seats.
William Castle: [gimmick] Whenever blood-curdling screams occurred in the movie, hidden buzzers vibrated the seats. (This feature was called "Percepto.") Shills planted in the audience let out their own screams.