Audio problem: Malory ejects all of the shells in the shotgun to show she knows how to operate it, but the audio clip is of empty shotgun shells hitting the floor.
Audio problem: In the opening scene, when Christian asks young Elise "How did you know that?!" after the talks about the man who was just executed, his mouth isn't moving. (True, he's out of focus in the background, but he's not speaking).
Audio problem: When the nurse at the hospital tells the family that Elisabeth was transferred two days prior, Waltraud says "Transferred? That's impossible" and doesn't say anything else. The camera then changes angles to focus on the nurse and Waltraud's mouth, visible in the left hand corner of the frame, can be seen moving briefly, even though she already finished the line and didn't say anything else. (00:29:17)
Audio problem: It isn't clear what the woman was saying while she was kissing Frank, but it would not have been possible for her to be vocalizing any words while her lips were on Frank's. When they were done kissing, her last word did not match her mouth movement. (01:28:10)