When Tron was first released I was in a grad level computer graphics class at a university in the USA midwest. I convinced our rather stuffy professor to take the class across the street to the "Cinema Twin" and watch the movie. In those days computer graphics consisted of mostly pen plotters and Tektronix vector displays - pretty dry stuff, lots of theory in the class but not much interesting output was generated. To say the collective minds of the class were blown away by the movie would be an understatement. In its own way it showed the future of CGI and what the this domain could look like. If you haven't seen it lately, give it spin - it holds up well.