The Star Wars prequel trilogy, colloquially referred to as the prequels, is a series of epic space-opera films written and directed by George Lucas. It was produced by Lucasfilm Ltd. and distributed by 20th Century Fox. The trilogy was released from 1999 to 2005 and is set before the original Star Wars trilogy (1977–83), making it the first act of the Skywalker saga, despite being the second released. Lucas had planned a prequel trilogy (as well as a sequel trilogy) before the release of the original film, but halted major Star Wars films beyond the original trilogy by 1981. When computer-generated imagery (CGI) had advanced to the level he wanted for the visual effects he wanted for subsequent films, Lucas revived plans for the prequels by the early 1990s. The trilogy marked Lucas's retur