Harryhausen pioneered the “Dynamation” stop-motion model animation process, which changed how fantasy and SF films were produced, no longer reliant on just human interventions, real special effects had arrived and was to provide the main influence for all the CGI we see today.
For more in depth review of his work and live click here but I shall forever associate him with the skeltons in the Voyage of Sinbad and Jason and the Argonaughts.
Filmography (from Wiki):
- How to Bridge a Gorge (1942) (producer)
- Tulips Shall Grow (1942) (chief animator)
- Mother Goose Stories (1946) (producer)
- The Story of Little Red Riding Hood (1949) (producer, animator)
- Mighty Joe Young (1949) (first technician)
- The Story of Rapunzel (1951) (producer)
- The Story of Hansel and Gretel (1951) (producer)
- The Story of King Midas (1953) (producer)
- The Beast from 20,000 Fathoms (1953) (visual effects)
- It Came from Beneath the Sea (1955) (visual effects)
- The Animal World (1956) (effects technician)
- Earth vs. the Flying Saucers (1956) (special photographic, animation effects)
- 20 Million Miles to Earth (1957) (visual effects)
- The 7th Voyage of Sinbad (1958) (associate producer, visual effects)
- The Three Worlds of Gulliver (1960) (visual effects)
- Mysterious Island (1961) (special visual effects)
- Jason and the Argonauts (1963) (associate producer, visual effects)
- First Men in the Moon (1964) (associate producer, visual effects)
- One Million Years B.C. (1966) (special visual effects)
- The Valley of Gwangi (1969) (associate producer, visual effects)
- The Golden Voyage of Sinbad (1974) (producer, visual effects)
- Sinbad and the Eye of the Tiger (1977) (producer, visual effects)
- Clash of the Titans (1981) (producer, visual effects)
- The Story of The Tortoise & the Hare (2003) (director, co-producer, animator)