Continuity mistake: When Paganini is telling Urbani he is done with him, each time the camera angle changes, the lighting on Urbani's head changes angles.
Visible crew/equipment: After Charollte's father says they could book concerts on her alone, it cuts to her father's mistress and the China cabinet behind her shows the reflection of a crew member moving around.
Continuity mistake: As Charlotte and her father are hearing Paganini play the violin in their house, they walk to the stairs. As they reach it, her father's head suddenly is turned facing up the stairs.