Tron (1982)

"Tron" is a 1982 Science Fiction movie directed by Al Roelofs and starring by Jeff Bridges, Bruce Boxleitner. When brilliant video game maker Flynn hacks the mainframe of his ex-employer, he is beamed inside an astonishing digital world...And becomes part of the very game he is designing. In his mission through cyberspace, Flynn matches wits with a maniacal Master Control Program and teams up with Tron, a security measure created to bring balance to the digital environment.