5 minutes in the first episode, we see Toby Stephens ass & balls as he is getting out of bed.
35 minutes in the movie, Tom Hollander gets naked on a bridge. It's frontal but from far away.
36 minutes in the movie, Tom Hollander is again on the bridge. Toby Stephens and Rupert Penry-Jones join him.
We can see their 3 butts.

Almost 2 hours in the movie, Ralph Fiennes is forced to strip in front of everyone. We only see his butt initially. Then he is tortured and we have get a full frontal. Towards the end of the movie, Ralph Fiennes is taking a shower when someone walks in. A discussion follows as Ralph continues showing a full frontal. His dick appears soapy but pretty big.

57 minutes in the movie, Michele Riondino is taking a bath. As he stands up from the bath, we see his uncut dick and then his butt when he turns around.

28 minutes in the movie, Gerard Butler and Billy Connolly both undress completely to go swim in the ocean. As they run naked we see their penises flopping around and then their butts. The scene is not very long but it is very clear. Both have good-sized uncut penises. Gerard Butler has a nicer butt as he is younger.

97 minutes in the movie, Sean Biggerstaff is naked in bed with a woman. As he rushes out of the bed, we get a brief view at Sean Biggerstaff's cut penis.
Sean Biggerstaff rapidly dresses up. We can view his hairy body, bushy pubic hair and circumcised penis.

7 minutes in the the pilot episode, Jamie Campbell Bower is naked but we don't see much.
20 minutes in the episode, James Purefoy is naked making love to a woman. When he flips over her, we clearly see his butt.
44 minutes in the movie, Jamie Campbell Bower is dreaming. In his dreams he is naked. We see his nice butt as he is making love to a girl.