“Our approach is not like Avatar, which I think is 3-D from the first shot to the last. Ours is sort of a ‘Wizard of Oz’ approach. Ninety-eight percent of the 3-D is in the world of Tron. The 3-D really starts once we get into the Tron world.
[…]
It’s a combination of technologies that Zemeckis has been using in terms of the completely digital motion-capture of a character and for the live-action camera system. We used a camera developed by James Cameron’s company. We used a newer generation of camera than the one used on Avatar. They built it specifically for us.
[…]
I would say the movie is not far removed [from the comic-con teaser]. The teaser, at least tonally, represented the direction I wanted to take it. That sequence actually doesn’t appear in our film at all. It represents a period of time before our film begins. We were able to refine the design of the light cycles, the characters, the world and kind of flesh it out to a much higher level of detail than we were able to do for the test. What we’re going to see in the film will feel a lot more photorealistic. They did that test with eight or 10 people in a matter of months. We have thousands of people working on the film. It’s a whole different scale.”