Creature from the Haunted Sea is a 1961 cult film directed by Roger Corman from a screenplay by Charles B. Griffith. It is a comedy film spoofing the "sea monsters" genre. It can be considered a part of two different "trilogies", either as the third in a Corman-Griffith comedy trilogy consisting of this film and the dark comedies, A Bucket of Blood and The Little Shop of Horrors, or a part of Corman's "Puerto Rico trilogy," also consisting of Last Woman on Earth and Battle of Blood Island. Fred Katz's musical score for this film was originally written for A Bucket of Blood and was also used in The Little Shop of Horrors as well.