Audio problem: In the scene where Victor plays the piano for the first time in the movie, we hear him playing long, sustained notes, which obviously need to be played with a pedal down. However, he doesn't use the sustain pedal. What's more strange is, the piano does not even have a sustain pedal.
Audio problem: In the scene where Victor plays his solo for the first time he gets scared from the appearance of Victoria. As he and her are talking Victoria's mother shouts at them for being together. We don't hear Victoria's mother's footsteps like as she was leading Victor's parents for tea. And we would have heard the door creak as Victoria's mother came out from "teatime".