Lord Gordon: Good beans, Wellington.
Duke of Wellington: If there is anything in this world about which I know positively nothing, it is agriculture.
Mulholland: We're doing murder, your grace.
Duke of Wellington: I hope to God... that I've fought my last battle.
Lord Uxbridge: By God, Sir. I've lost my leg.
Duke of Wellington: By God, Sir. So you have.
Duke of Wellington: Next to a battle lost, the saddest thing is a battle won.
Napoleon Bonaparte: Cross the river. Tomorrow we will dry our boots in Brussels.
Michel Ney: God willing, sire.
Napoleon Bonaparte: God? God has nothing to do with it.
Napoleon Bonaparte: Never interrupt your enemy while he's making a mistake. That's bad manners.
Napoleon Bonaparte: I can't believe my ears! You all stand before me waving a piece of paper crying 'Abdicate, abdicate!' I will not! I will not, not, not.
Answer: I think the film's dramatisation of this particular incident, when the French army defected from the restored Bourbon royal family back to the Emperor Napoleon might owe something to the painting NAPOLEON RETURNED painted in 1818 by Charles Steuben (also called Charles De Steuben and Karl Steuben) a German who became a nationalised (and patriotic) Frenchman https://commons.wikimedia.org/wiki/File:Napoleon_returned.jpg.
Rob Halliday