After Adrian is crowned king, the initial shot shows the crown's dark blue decoration partially above his right eyebrow, or the camera's left side. Despite standing still, it traverses to his forehead's left, or the camera's right side, in subsequent shots.
During the coronation the camera shot looking at Adrian while he's giving his speech shows an empty chair in the front row in front of the lady wearing gold. The camera shot changes to a camera behind Adrian looking out at the audience and there is a man sitting in that chair. He is there until just before Adrian says "so much for listening" and then he's back and then gone again when Adrian gets crowned.
Children singing Frère Jacques and Lavender's Blue but the music they're looking at is unrelated to those songs.
At the beginning when the Queen is eating breakfast, both of the shakers in front of her contain salt. Obviously one should have been pepper.