the computer made special effects are called CGI (computer generated imaginery) and the traditional optical or mechanical special effects are called special effects
Relativity was a concept in physics before Einstein came along. Galileo wrote about "The Basic Principle of Relativity". So "Special Relativity" refers to relativity applied to the special case of...
George Melies, a French Cinematographer, he had his own version of Verne"s moon shot out around the early l900"s between l903-09. Melies was also a stage magician another trade on illusion.