Real amputees portrayed victims of the film's monster shark.
Star Michael Sopkiw attributes the film's flaws and negative reviews to the production's limited budget, saying that Lamberto Bava was a great director.
The film's cast and crew were made up of Americans, Italians, and Latin Americans. Communication was often a challenge. The cast shot their scenes speaking their native languages, knowing that the dialog would be dubbed in English later.
The Mystery Science Theater 3000 (1988) cut of the movie has the riffers constantly making fun of Michael Sopkiw for being an Italian pretending to be American when in actuality, Sopkiw is really American born in Connecticut.
This film was featured in the 10th season of Mystery Science Theater 3000.