26 minutes in the movie, George Clooney is standing naked kissing a woman. As the camera turns around them, we see George Clooney's butt in various angles. Again 37 minutes in the movie, George Clooney is lying down naked on the bed. He is on his stomach. There is no much movement besides his cheeks contracting.

In the first minute of the movie, Channing Tatum is naked in bed. As he gets out of bed, we get a very brief view at Channing Tatum's thick cut dick, and then a long view at his butt.
Alex Pettyfer gets naked on stage 27 minutes in the movie. We first see his bulge in his underwear, and then we see his butt.