Audio problem: In the scene where the Prince meets up with Leonardo da Vinci for the first time and notices that his guards have found him, he says 'Oh, I can't believe this'. His mouth isn't in sync with what he's saying.
Suggested correction: Firstly, the closed captioning reads, "God, I don't believe this." Second, Henry actually says it twice - the first time his mouth IS in sync with what we hear, but then he mouths under his breath "I don't believe this," again, in annoyance with the situation.
I am watching the scene right now, and his mouth really isn't in sync. In order for him to say the word "believe" (even in mumbled form), he would have to move his mouth to form the "b" sound, and he does not at that point.
Audio problem: When Danielle brings the salt to the dining table, the Baroness sprinkles a spoonful of salt over the single shelled hard-boiled egg in the bowl, with its removed cracked shell lying on the plate beneath. After the stepmother rebukes Danielle, we hear the distinct sound of her cracking the hard-boiled egg's shell with her spoon, just before she says, "Eggs are cold," even though the egg has no shell. (00:17:40 - 00:19:00)