The Last Emperor (1987)

Continuity mistake: When the Empress Dowager dies, she can't stand opening her eyes and closes them as the servant covers her face. You can see that through the white cloth.

Other mistake: The documents to which the Imperial Seal was stamped at both the coronations in Peking (1908) and 'puppet' coronation in Manchuria (1934) carry the same dates. They also show the same 'coronation names' when it is known that Puyi was coronated as 'Xuantong' in Peking and 'Kangde' in Manchuria. This will only be apparent if one can read Chinese. (00:14:45 - 01:47:40)

Continuity mistake: When the new bride is kissing Pu Yi, she leaves some lip marks all over his face, but these marks change from shot to shot.

Pu Yi, at 15: Who is this George Washington?
Reginald Fleming 'R.J.' Johnston: A famous American, your majesty. A revolutionary general, the first American president.
Pu Yi, at 15: Ah, like Mr. Lenin in Russia?
Reginald Fleming 'R.J.' Johnston: Not quite.
Pu Yi, at 15: Does he have a car?
Reginald Fleming 'R.J.' Johnston: He lived a long time ago, your majesty.
Pu Yi, at 15: I want a car.

Pu Yi, at 15: Is it true, Mr. Johnston, that many people out there have had their heads cut off?
Reginald Fleming 'R.J.' Johnston: It is true, your majesty. Many heads have been chopped off. It does stop them from thinking.

Reginald Fleming 'R.J.' Johnston: Words are important.
Pu Yi, at 15: Why are words important?
Reginald Fleming 'R.J.' Johnston: If you cannot say what you mean, your majesty, you will never mean what you say and a gentleman should always mean what he says.