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Tron Trivia

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This article is dedicated to the Trivia in TRON and facts about the movie, its cast and crew, and just about every thing else involved with the movie.

Random trivia, facts and continuities about...

The Programs


Overused tron shot

Repeated Tron close-up.

  • There are three close-up shots of Tron that are exactly the same, with the exception of differences in the background and the fact that one of the shots is played in reverse. These shots appear chronologically in TRON at 1:04:06, 1:19:52, and 1:20:15.
  • Tron mysteriously disappears in thin air at time-mark 1:25:17.


  • At time-mark 1:23:50, The MCP's forehead is missing.


  • According to Richard Taylor, Sark's brains was a pile of clock parts.


  • Yori usually wears a skullcap, but for reasons unknown, she wears a regular male helmet instead while on the Solar Sailer.

Sark's Lieutenant


Sark's Lieutenant has neck circuitry.

  • Sark's Lieutenant has computer circuitry on the outside of his suit and on his skin.

The Production

  • During the ENCOM exterior shooting (where the giant door was), there had been radioactive spillage near the shoot. Cindy Morgan even stepped in a contaminated area and had to have her shoes decontaminated.

The original circuitry colors


A guard with yellow circuitry. This image was from test animation shown to Disney executives to convince them that the backlight animation will work.


The same guard as above but with regular red circuitry. This is from Tron.

The original plan was to have the circuit lines of the "good" programs glow yellow, and the "bad" programs would have blue circuit lines. At one point this was changed to where good programs are blue, and evil ones are red. Some of the original coloring remains, mostly in tank programs (Clu has yellow lines on his uniform, and all of Sark's tank commanders are pale green). But Flynn takes on this greenish tint after he crashes the recognizer and gets knocked out, shortly after he gets up he returns to the normal blue.

There was no explanation by the filmmakers about why there was a color change, but one explanation by the President of The Electronics Conservancy, Keith Feinstein, said that:

It was the game makers that decided on who would be red and who would be blue because the movie crew was undecided and they had to finish the game.

The Animation

  • At the time, computers could generate static images, but could not automatically put them into motion. Thus, the coordinates for each image, such as a light cycle, had to be entered for each individual frame. It took 600 coordinates to get 4 seconds of film. Each of these coordinates was entered into the computer by hand by the filmmakers.
  • Many Disney animators refused to work on this movie because they feared that computers would put them out of business. In fact, 22 years later Disney closed its hand-drawn animation studio in favor of CGI animation.

Traditional animation appears for the background of some shots in the movie.

  • Despite the use of CGI through out the movie, there is some traditional animation in the movie, most noticeably the Gridbugs that briefly appear near the end of the movie. Other instances include the moving background when Flynn is flying the recognizer and the parts of the destroyed bridge during the light cycle chase.

The reason why traditional animation was used instead of CGI for backgrounds was because the technology didn't exist yet to matte live-action footage onto CGI animation.

  • Triple-I created many complex shots for Tron and one of them was the scene of Sark's Carrier derezzing. According to Richard Taylor on Tron 20th Anniversary DVD's audio commentary, Triple-I didn't have the capability to create vector outlines (unlike MAGI), so when Sark's Carrier derezzed into vector outlines, each line had to be modeled into a solid object, which was very pain-staking.
  • The face choreography for the MCP was mostly done by Triple-I's Bill Dungan, Larry Malone, Malcom McMillan and Art Durinsky and features some of the earliest CGI human-like facial animation in history, which was quite a major feat in 1982.

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