A crazy interpretation of Dennis Wheatley’s Uncharted Waters in which a freighter en route to South America with a motley crew and assorted guests fuss and fight and mutiny and then get lost in the Sargasso Sea with man-eating seaweed and wind up on an island run by the descendants of failed conquistadors. Eric Porter was better known for The Forsyte Saga and he is joined by some familiar faces. Gifted director Michael Carreras never did enough since he was a famously handy producer and he was allegedly assisted here by Leslie Norman. Great fun. And seriously strange even for Hammer. Definitely a film of two halves.