Another thing I love about Tron is the spiritual aspects of the film. There's an interesting 1-1 ratio of Tron computer characters to their individual "Users", the User being basically the equivalent of a God to them (even in the subtitles, the term "Users" is used in upper-case, which I thought was clever. There are many, many spiritual aspects to the film, such as the Tron character entering the chapel-like IO tower and communicating with his User (almost as if he's offering a prayer) and the Sark/MCP characters are very similar to a marxist government persecuting the believers (Sark openly tells the video game characters that they should abandon their beliefs in "the Users", and even the guards who work for Sark make jibes at a User-believing game character, calling him a "religious nut".) Even the Ram character takes consolation, at his death, in knowing that Flyn is a validation in his belief in the users.
And of course, the Flyn character, a human in video game character form, has some messianic parallels, including his act of self-sacrifice at the end of the film to free the world from the bondage to the MCP (sin?)
There's plenty of the in the film, making for some interesting parallels.
