When Keane goes to the Paradine house in Cumberland, he walks over to Mrs. Paradine's piano. On the piano we see close-up of a page of music called Appassionata Op. 69 by Francesco Ceruomo. But in the next scene, when we see Keane passing by the piano, none of the three pages on it have any title at the top, only music, showing they are subsequent pages of that piece, and not the first one, as shown in the close-up.
When Latour appears outside Keane's inn room, the wind is blowing wildly, whipping Latour's hair across his forehead; yet just a split-second later, after Latour has entered the room, his hair is perfectly combed without a hair out of place.