Emma (1996)

Continuity mistake: When Emma and Mr Knightley kiss for the first time near the end, they are both tilting their heads to the right when the camera angle is from Emma's perspective. Then, the instant the camera changes to Mr Knightley's perspective, they are suddenly tilting their heads to the left.

Rev. Elton: Were I not an old married man, I should gladly do the job. But my dancing days are over.

Question: What is the song that Emma sings with Frank Churchill when she plays the pianoforte?