Tron is a 1982 American science fiction film written and directed by Steven Lisberger, based on a story by Eren G. and Bonnie MacBird, and produced by Walt Disney Productions. The film stars Jeff Bridges as a computer programmer who is transported inside the software world of a mainframe computer where he interacts with programs in his attempt to escape. Bruce Boxleitner, David Warner, Cindy Morgan, and Barnard Hughes star in supporting roles.
Kevin Flynn Jeff Bridges is a software engineer, formerly employed by the computer corporation ENCOM, who now runs an arcade bar called Flynns. He wrote several video games, but another ENCOM engineer, Ed Dillinger David Warner, stole them and passed them off as his own, earning himself a series of promotions until reaching Senior Executive VP. Having left the company, Flynn attempts to obtain evidence of Dillingers actions by hacking the ENCOM mainframe, but is repeatedly stopped by the Master Control Program MCP, an artificial intelligence written by Dillinger. However, since its inception the MCP has become powerhungry, illegally appropriating business and even government programs and absorbing them to increase its own capacities it informs Dillinger of its plans to subjugate the Pentagon and the Kremlin, and expresses interest in China with its request for Chinesetranslation programs, blackmailing Dillinger into compliance with records of his theft of the games.Flynns girlfriend, Lora Baines Cindy Morgan, and fellow ENCOM engineer, Alan Bradley Bruce Boxleitner, warn Flynn that Dillinger knows about his hacking attempts and has tightened security. Flynn persuades them to sneak him inside ENCOM, where he forges a higher security clearance for Alans recently developed security program called Tron. In response, the MCP uses an experimental laser to digitize and download Flynn into the ENCOM mainframe cyberspace called the Grid, where programs are living entities appearing in the likeness of the human users who created them. ........
Source: Wikipedia