Title

Only American distributors James Nicholson and Sam Arkoff knew for certain and they're both deceased. However, the success of this film directly resulted in the same duo re-naming the 1963 film THREE FACES OF FEAR as BLACK SABBATH. In a related story, Ozzy Osborne said when he was trying to come up with a name for his band, the movie BLACK SABBATH was playing in a theater across the street. He liked the title and the movie and decided to call the band Black Sabbath.

The AIP version added the opening narration which begins with: "One day in each century, it is said that Satan walks the among us. That day is called "Black Sunday".

http://youtu.be/wTC2vRfyVJY

I will not fear. Fear is the mind killer.

I like the title "Black Sunday" myself. It makes the film sound very ominous and spooky which it is so it sets a mood before the movie even begins.