I only remember the noisy urination scene
I saw the movie only once years ago, but the only scene in the later part of the movie I remember was when the young man who was the emperor was somehow not emperor and was in some room with other young men, he took a whizz in a communal bucket of water, but chose to pee in the middle rather than the side, making a lot of noise and waking the others who were annoyed by him.
What I'm interested in is what was the situation of that scene? Why was he in a room with other men? Was it some kind of prison? I clearly have no clue as to what the background of the scene was.