Richard Burton is magnificent with Tatum O'Neal, but he was always magnificent in everything and anything. Obsession is about a sixty-year-old painter whose artistic talent has waned. The sixteen-year-old younger, Sarah, played by O'Neal has great chemistry with Burton, sparks him to paint again. This movie is tastefully done without crossing any age lines. I had never seen or heard of this movie, but glad I found it by accident on Amazon Prime. It's good enough that I'm going to watch it again just to listen to Burton's accent.