Tron

Tron is a 1982 American science fiction action adventure film written and directed by Steven Lisberger from a story he co-wrote with Bonnie MacBird. The film stars Jeff Bridges as Kevin Flynn, a computer programmer and video game developer who is transported inside the software world of a mainframe computer where he interacts with anthropomorphic programs in his attempt to escape. It also stars Bruce Boxleitner (in the eponymous role), David Warner, Cindy Morgan, and Barnard Hughes. Tron was one of cinema's earliest films to use extensive computer-generated imagery (CGI).