Hah! See how bored i am! I managed to capture a screenshot of one of the subliminal images...lol!http://bit.ly/sL2IFR

Well, apparently you missed the opening sequence before the title of the movie, where it declared in large words on the screen that this film is brought to you in PSYCHO-RAMA - the 4th dimension!!! Goofy premise, but it stated that subliminal images would be delivered thruout the film to "enhance' the terror... but they were hardly subliminal since we could in fact perceive them consciously.From Wikipedia:
"Psychorama (or "The Precon Process") is the act of communicating subliminal information through film by flashing images on the screen so quickly that they cannot be perceived by the conscious mind.
In 1958, a film called My World Dies Screaming (later retitled Terror in the Haunted House) marked Hollywood's first attempt to make use of this technique. At different points in this film, a skull is flashed to inspire terror, a snake to inspire hate, two hearts to inspire love, and large letters spelling out "blood" to create fear. The following year, 1959, saw another film produced using this same format, titled A Date with Death. Both movies starred Gerald Mohr."