screenshots / Mystery on Monster Island / 1981 Almena Films

Loosely based on the Jules Verne novel A School for Crusoes first published in 1882.

Original Spanish title: Misterio en la isla de los monstruos (Mystery on the island of monsters).

Notable as being the only movie to feature horror stars Peter Cushing and Paul Naschy (in a cameo appearnce) in the same film.

Terence Stamp previously appeared in the role of General Zod in both Superman (1978) and Superman II (1980).

Ian Sera would be cast in another film from director Juan Piquer Simón: 1983's Extra Terrestrial Visitors (known to Mystery Science Theater 3000 fans as The Pod People).

Frank Braña later films include Freddie of the Jungle (1981), Yellow Hair and the Fortress of Gold (1984), and the aforementioned Extra Terrestrial Visitors.

Gasphar Ipua plays the role of Carefinatu, a native man who is rescued from cannibals.

The film's footage was later reused and edited into another movie from director Juan Piquer Simón: Manoa, la ciudad de oro (1999).

Filming locations in Spain include the Canary Islands and Madrid.