Right at the beginning of the movie, we see James McAvoy in his wet underwear, with a clear bulge.
There are several other bulge scenes later on also.
50 minutes in the movie, James McAvoy only wearing a short undresses in front of the camera. He is slightly remote, so we don't see a lot of details.
We can however see that James McAvoy has a great bubble butt and a rather large uncut penis.
We see again his butt when he is making love to a woman, 74 minutes through the movie.
In this movie, Jan Uddin appears completely naked, frontal, but in the background. So hopefully you have a super-sized TV to enjoy this view. We tried and zoom the picture in the attached snapshots. Jan has a nice big dick and big balls and is body is amazingly slim. He plays a gay role here, as the boyfriend of Danny Huston.