When the Colonel's wife opens her daughter's salts, she drops the cap. She then gets up, and puts the cap back on without picking it up.
When Julietta is banging on her father's door, the audio is not synchronized with the video.
When the Colonel throws his gun on the table, the audio is not synchronized with the video.
During the scene when the Count rids the Marquise of her attackers, there are visible studio lights perched on top of the battlements.