Ben Affleck, 42, has a ''brief'' nude scene in his new movie Gone Girl but he joked fans would have a better time if they were able to see a deluxe screening of the thriller. He said: ''I think there's some brief nudity in this movie. Director David [Fincher] said to me from the beginning, 'This is a warts 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. The penis is in there! It's IMAX penis! You've gotta pay $15 to see it in 3D ... it's better in 3D.'' However, Ben jokingly warned fans not to expect too much when he bares all. He quipped to MTV News: ''You should know it was very cold. It was a very cold set. It was freezing. It was sub-zero.''