There is a video doing the rounds, but unfortunately we're unable to view it outside of America. I know, boo, but here's a rough transcript of what occurred during his junket interview with MTV News alongside his Gone Girl co-star Rosamund Pike:

"I think there's some brief nudity in this movie. Director David [Fincher] said to me from the beginning, ‘This is a warts (stoppit) and all movie. It can have no vanity. You have to see the naked underbelly of this character. It's gotta be like in Europe, they just don't give a s--t about any of that stuff and they just play real people'…[So] there is some brief, very brief nudity, I think... It costs extra. It's IMAX penis! You've gotta pay fifteen bucks to see it in 3-D. It looks better in 3-D... It was a very cold set. It was freezing. It was subzero."

The Argo star may be going nude for the first time in Gone Girl but he claims it is a long-held ambition to get naked on screen. He said: "I try to get it in every movie."

Hey, some films' whole marketing campaigns have been hinged on its stars daring to bare themselves. I know I keep bringing up Halle Berry in Swordfish, but - seriously - the ENTIRE marketing campaign was based on her book-reading topless scene. Yep, she was just reading a book, topless.

Via Us Magazine