Tron 2 "The Most Difficult Thing I've Ever Done," Says Star

House star Olivia Wilde has been talking about her experience shooting Tron Legacy, calling it an "epic undertaking" and saying that it was the most difficult thing she'd ever done. Who knew Jeff Bridges was so hard to work with?

Talking to Coming Soon, Wilde said,

We shot some 20-hour days, we were wearing the suits, which are not easy to wear. I was doing a lot of my own stunts and training a lot of the time. Really pushing myself physically as well as mentally. It was an epic undertaking. It was a HUGE film to shoot in those few days. I was so proud to be a part of it. The morning that we wrapped it was an unbelievable feeling. We all just lost it. It was sunrise and we couldn't believe we were actually done... Now I have so much more empathy and respect for the people who've done it before me... and after. I don't write-off large sci-fi films so flippantly as I did. I look at anyone who's had to put on a rubber suit and I'm, like, "Oh wow, you're awesome! You survived!" (laughs) None of the suits are like our suits, though. Our suits have really risen to a new level of discomfort, but it's brilliant and well worth it. It's totally worth it.

Tron Legacy is scheduled for release December 17th, 2010.

Olivia is Wilde About Tron! [Coming Soon]