Omigod did this film suck! It tries to be hip and funny but it's neither. It's supposed to be a horror/camp movie. However, it's funny when it doesn't mean to be and horrifying on so many levels. The monster looks like something my 12 year old niece built. And what's up with the guy who makes all the animal sound effects? Truly horrifying! Apparently Creature from the Haunted Sea appears in the documentary "50 Worst Movies Ever Made ." I certainly makes my list! It makes Plan 9 from Outer Space (1959) look like a masterpiece.
Roger Corman, who won an honorary Oscar in 2009 for "his rich engendering of films and filmmakers," directed this mess. Don't judge his ability as a director by this film alone. Check out Little Shop of Horrors (1960) instead. Don't waste a single brain cell on Creature from the Haunted Sea.
Download a copy of the film, if you dare, from Archive.org
For more info check out the film's entry in IMDB.