Little Shop of Horrors is a 1960 American musical comedy film directed by Roger Corman. It is a film adaptation of the off-Broadway musical comedy by composer Alan Menken and writer Howard Ashman. The film's concept is thought to be based on a 1932 story called "Green Thoughts", by John Collier, about a man-eating plant. The film has an original style of humour, black comedy with elements of spoof.