9 minutes in the movie, Oliver Reed is running naked to jump into a lake. We see his dick and butt from a distance.

Paul McGann is naked first 84 minutes in the movie. He is naked in a bedroom. We see him from the back, so only his butt.
Then 100 minutes in the movie, Paul McGann is running naked in a forest. We see his butt and also his dick and balls moving around as he is running.