(Cover) - EN Showbiz - Jeff Bridges approached his new movie as if he was a child playing a game of pretend.

The 60-year-old actor plays Kevin Flynn/Clu 2.0 in TRON: Legacy. In the science-fiction movie about a virtual-world worker who plans to take down the Master Control Program, there are scenes showing Jeffs character as a youngster as well as his current older self.

He had to done a special mask and have 154 dots placed on his face in order for the motion capture technology to work properly. Jeffs movements were caught on camera, and then transformed using digital animation. As well wearing the special headwear Jeff spent a lot of time acting in front of a green screen, but enjoyed using his imagination.

You had to remember what it was like to be a kid; you were playing pretend and it was all in your imagination, so that was more of the technique that you had to use, he explained.

Garrett Hedlund plays Kevins son Sam, and loved the process of shooting the movie. He found the technology used mind-blowing, with co-star Olivia Wilde, who portrays Quorra, equally as in awe. She actually spent most of the movie worrying shed gate-crashed something, as it seemed so beyond her.

I'm not the most technological person; that's why it's so cool to experience this and be a part of something like this. It's a once-in-a-lifetime thing. It is grand and so incredible and revolutionary, Garrett told ET.

I felt like, 'Wow, I was picked for the lacrosse team and I don't even play lacrosse, Olivia added. It was such a challenge and so much fun. (C) Cover Media