Stephen Dorff, Cuba Gooding Jr. and Jack Krizmanich in Shadowboxer (2005)

Jack Krizmanich is first seen buck naked at the beginning of the movie. He is tied to a pool table when they rip off this pants and they fuck him with a pool stick (although we don't see that). Jack has an amazing ass and the view of a pool ball in his mouth wide open is interesting! Mid movie, Stephen Dorff is having sex with a girl, when disturbed by the noise in the hallway, he pulls out.

Jonathan Groff in Twelve Thirty (2010)

20 minutes in the movie, Jonathan Groff undresses in front of the camera. Although the scene is hot, we see his hot abs, but no full nudity at that time.
Just a minute later, 21 minutes in the movie, Jonathan Groff walks bare naked in front of the camera for a full 30 seconds. His cut dick and balls are bouncing around. This is an amazing movie scene. Now we all know what Zachary Quinto wakes up next to.
83 minutes in the movie, Jonathan Groff gets naked again with another woman. We don't see as much. We see Jonathan Groff's butt but his penis and balls are kept in the woman's hand in that scene.

James Franco in Whatever It Takes (2000)

In this movie, James Franco wears nothing but a thong. So he is not really naked, but a thong is not much, so we thought we should include this movie here. Seeing him tied to a bed, arms and legs spread away, with his trimmed armpits, his amazing hairless body, and his packed thong is a view you will not forget. James Franco indicated in an interview that he was uncut, so the circumcision status has been updated based on this information.

Fab Filippo, Randy Harrison, Justin Tensen, Gale Harold, Robert Gant, Harris Allan, Trevor Hardy, Peter Paige, Hal Sparks and Scott Lowell in Queer as Folk (2002)

2 minutes in episode 1, we see Fab Filippo's pubes and butt. Then we see his hairy butt crack and in briefly in between his legs what appears to be a sock on his dick.
3 minutes in episode 1, on one frame we see Randy Harrison's dick.
41 minutes in episode 1, we see Justin Tensen naked. We briefly see his balls and uncut dick, and then his nice butt. We also see Gale Harold's butt.

Adam Pålsson and Simon J. Berger in Don't Ever Wipe Tears Without Gloves (2012)

In this very nice mini series, there is not much nudity.
There is however one scene at a nudist beach. This scene is at the 14th minute of the second episode, and also at the 48th minute of the 3rd episode.
Adam Pålsson and Simon J. Berger show most nudity.
We see Adam Pålsson's butt and also his big balls in between his legs, when he is swinging over the lake.

Ben Affleck and Sam Rockwell in Glory Daze (1995)

Right at the beginning of the movie, we see Ben Affleck, with its hairy chest, getting out of bed shirtless, and as he goes to the bathroom, we see Sam Rockwell in the shower. We see Sam Rockwell's through the curtain, but quite clearly, as he is heads out the shower, we see part of his penis. 21 minutes in the movie, Ben Affleck is dressed as a clown. He drops his pants, and then his boxers. He reveals a fine butt.

Pepper Fajans in The Graffiti Artist (2004)

Pepper Fajans and Ruben Bansie-Snellman have a bromance in this movie. There is a hot scene where Pepper Fajans jerks off Ruben Bansie-Snellman to completion. We don't see Ruben's penis but the scene is still very hot. Before that scene, as Pepper Fajans is getting out of the shower, we see his butt.