While 'Tron' (1982) and 'The Last Starfighter' (1984) featured significant digital effects, the 1985 film 'Young Sherlock Holmes' made history by featuring the first fully computer-generated (CGI) character in a feature film. The character was a 'Stained Glass Knight' that comes to life from a church window. The effect was created by Pixar, which at the time was still a small computer division of Lucasfilm. It was the first time a digital creation was successfully integrated into a live-action scene, interacting with real actors and physical sets. This breakthrough, led by John Lasseter, proved that computers could create complex, believable characters that didn't exist in the real world, paving the way for everything from the liquid metal T-1000 in 'Terminator 2' to the fully digital cast of 'Toy Story.'