Little Shop of Horrors (film) would pantomime and lip sync in slow motion. The film was then sped up to the normal 24 frames per second and voices were reinserted in post-production. Levi Stubbs' recordings were run through a harmonizer when slowed down so that they were coherent for Moranis or Ellen Greene. There are no blue screens or opticals involved in any of Audrey II's scenes, with the exception of the reshot ending where the plant is electrocuted, designed by Visual Effects supervisor Bran Ferren, and in some shots during the rampage in the original ending. The plant was made in six different stages
Little Shop of Horrors (film) much more convincing and lifelike. They realized they could film the puppet at a slower speed, making it appear to move faster when played back at normal speed. "By slowing it down it looked it was talking real fast. We then went 'holy cow, look at that. We can do it. The frame rate for filming the plant was slowed to 12 or 16 frames per second, depending on the scene, and frequent screen cuts were used to minimize the amount of screen time the puppet spent with human actors, and when interaction was totally necessary, the actors (usually Moranis)