The Little Shop of Horrors AIP distributed the film as the B movie for their release of Mario Bava's "Black Sunday". Despite being barely mentioned in advertising (it was only occasionally referred to as an "Added Attraction" to Bava's film), "Black Sunday"'s critical and commercial success resulted in positive word of mouth responses to "The Little Shop of Horrors". The film was re-released again the following year in a double feature with "Last Woman on Earth". Because Corman did not believe that "The Little Shop of Horrors" had much financial prospect after its initial theatrical run, he did not bother to copyright it, resulting in
Pet Shop of Horrors differ for each animal sold (although each animal's contract includes not showing it to anyone), and breaking this contract usually results in dire (and sometimes disturbing) consequences for the buyer, for which the pet shop claims no liability. Individual chapters of "Pet Shop of Horrors" are often based on these consequences, and are each written as a stand-alone story, usually introducing one or more new characters in each chapter. With the exception of the main characters and their families, it is rare for a character to carry over to a later chapter, providing the series with a very episodic nature.