The Last Starfighter (1984)
This outer space adventure about a young gamer being recruited to fight in a real galactic war featured a plethora of CGI effects shots - rather appropriately. All the shots of spacecraft, the space itself, and the ensuing battles were generated on a Cray X-MP computer. Playground rumour had it that Atari built a real Last Starfighter machine which was never put into production. We can but hope.