1982’s Tron showed us what might be going on inside computers, where programs live in The Grid, and fight for survival against the evil Sarc and his Master Control Program.  At the end of that film, creator Kevin Flynn (Jeff Bridges) – who had been sucked into the computer – managed to escape and take control of ENCOM.  As Tron: Legacy opens, seven years later in 1989, we see that Flynn now has a son, Sam, and has made ENCOM …