What clical music piece by Mozart is this from?

I don't think it's by Mozart but I my knowledge of his music is mostly limited to his orchestral work and a smattering of chamber music. Could be something written to sound like Mozart. They don't have to worry about paying royalties to Mozart's estate, but the performers will want to be paid, so it could've been written by the soundtrack composer to sound like Mozart and be played by the film company's orchestra.