Of all the movies I'd love more information about its preproduction, it's TRON. The concept art dating back to when it was going to be a traditionally animated movie points to a pretty altered story.
A design point I really would have loved to see in the movie is that you can see the MCP castle from EVERYWHERE because it's so huge. Something I think about when I see Mt Ranier and realize it's 70 miles away.
@dolari I remember it missed out on the VFX Oscar because using CGI was "cheating"
If only they could see the current state of the industry