Some trends, old and new:
There’s a real art to cutting a good trailer. While the basics have remained the same over the years, some aspects of that art have changed greatly in the past two decades. Watch the original trailer for Tron, for example, and you’ll see a good tease for the film and the story, but one that is very much locked into the pulse of technology and storytelling common at the time.
In response to that, a fan has cut a new trailer for the 1982 film. It’s Tronas it might be sold today. The work is quite good; check it out:
A few things make this trailer quite a bit different than Disney’s original marketing materials. The title cards and graphics common to today’s style are used; there’s a more current score (some of it sounds like Batman Begins or Transformers); and the footage seems to have been given a couple bumps in post-processing to make it a bit more vibrant.
But the storytelling is there, and this edit does a good job of selling Tronas a character-based action film in an unusual world.