Juan Piquer Simón

 was a Spanish film director and screenplay writer born in Valencia, Spain on February 16th, 1935. His first venture into the genre of speculative fiction was directing and co-writing the superhero comedy film Supersonic Man in 1979.

In 1981, Juan directed Mystery on Monster Island, which borrowed elements from the works of Jules Verne, most notably, Mysterious Island and Around the World in 80 Days.