Original: It stars Jeff Bridges as Kevin Flynn (and his program counterpart inside the electronic world, Clu), Bruce Boxleitner as Tron and his User Alan Bradley, Cindy Morgan as Yori and Dr. Lora Baines, and Dan Shor as Ram.
Simplified: Tron is a 1982 Walt Disney Productions science fiction movie starring Jeff Bridges as Kevin Flynn (and Clu), Bruce Boxleitner as Alan Bradley (and Tron) and Cindy Morgan as Lora (and Yori).