"Autumn Leaves" (1956) is classic film that I recently saw for the first time. It stars Joan Crawford and Cliff Robertson.
Robertson who was 23 at the time and starring in one of his first films, plays a mentally unstable young man who falls in love with a lonely older woman. He gives a strong confident performance, often in very intimate scenes against Crawford, who was 52 and a big star at the time.
The film also features Lorne Greene, who went on to star in TV's hit "Bonanza."
There are a number of references to music in the story.
This was my favorite scene. I'm surprised they were able to get this dialogue and some of the more sexually charged scenes through the censorship of the time.