So far, “Tron 2″ secrets are pretty hard to find. We’ve seen a tiny teaser trailer with some wicked light-cycle battles and we have a vague idea about what’s going to go down, but I imagine it’ll be awhile before we get any real juice. Principal photography is finished but the likely to be ridiculously awesome effects won’t be finished until, like “Avatar”, just before the film is about to get reeled.

The Scifiwire kids talked to Jeff Bridges recently while he was promoting something not at all Sci-Fi and asked him about his dual roles in the film and his experiences filming without a camera. Jeff will play his character, Kevin Flynn, as an older guy and also as a young dude, via the tech demonstrated ably in Benjamin Button.

Jeff’s thoughts on being scanned.

“It was challenging, in that I got a little taste of this new technology of acting what they call ‘in the volume’ and making movies without cameras,” Bridges said in a group interview Wednesday in Beverly Hills, Calif., where he was promoting the drama Crazy Heart. “It’s a completely different deal. That was kind of a challenge. It was great getting back with my old buddy, [original Tron director] Steven Lisberger, and Bruce Boxleitner.” Boxleitner, who played the dual roles of Alan Bradley and Tron in the original film, will appear in the sequel as an age-appropriate Bradley.

Catch the rest of the interview over at Scifiwire. I’ve included the teaser trailer here again to assist you with your visualization.