Legendary producer Charles H. Schneer, the man behind such films as Earth vs. the Flying Saucers (1956), 20 Million Miles to Earth (1957), The 7th Voyage of Sinbad (1958), Jason and the Argonauts (1963), and Clash of the Titans (1981), and technical effects master Ray Harryhausen (back in the day they were called technical effects, not special effects), the man behind the eye popping effects of al