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
The Little Shop of Horrors remembers that "When [Welles] and I forgot my lines, I improvised a little, but then I was the writer. I was allowed to." However, Welles states that "Absolutely none of it was ad-libbed [...] every word in "Little Shop" was written by Chuck Griffith, and I did ninety-eight pages of dialogue in two days." According to Nicholson, "we never did shoot the end of the scene. This movie was pre-lit. You'd go in, plug in the lights, roll the camera, and shoot. We did the take outside the office and went inside the office, plugged in, lit and rolled. Jonathan