Real amputees portrayed victims of the film's monster shark.
This film was featured in the 10th season of Mystery Science Theater 3000.
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.
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.
In an interview with VHS (2012) podcast, actress Iris Peynado says she actually never saw the monster during shooting.