In this movie, David Boreanaz (from Bones, Angel, Buffy the Vampire Slayer, ...) appears briefly completely naked. He appears uncut but we are not completely sure from the zoomed-in screenshots. He has a pretty nice butt as we can see him walk out of his bedroom naked.
28 minutes in the movie, JJ Feild is stripped naked. We see his big cut dick and his massive balls bouncing around. We get a long view at his frontal while they hold him and even apply honey to his pubes! Then he he attached to a pole, and while a man comes deliver him, we get another long view at his frontal, and can admire his low hanging big balls. We even get close-up view at his genitals. In the second part of the movie, JJ Feild is playing naked with a girl. As she squeezes fruits over his body, we see his big dick again. This time he is showing us a nice chubby. JJ Feild is naked a lot in this movie. There are also a couple of other guys showing frontals, but not nearly as much as JJ.