Special-effects expert Ray Harryhausen discusses his career in a program that examines his early experiments in film and features interviews with author-screenwriter Ray Bradbury and producer Charles Schneer. Also: clips from "King Kong" (1933); "Mighty Joe Young" (1949); "Mysterious Island" (1961); "Jason and the Argonauts" (1963); and "Clash of the Titans" (1981).