About 40 years ago, Feynman presented a physics colloquium at MIT. I was there. His main talk was pretty forgettable (even geniuses have off days), but when he finished early he said "OK, let me give you the 5 minute explanation of Bell's Theorem". It was a revelation: I had studied the proof, and understood it as abstract mathematics, but Feynman's presentation showed me how to understand it as concrete physics. No equations, just drawings of rotating pies.
I'm pretty sure MIT didn't film it, but perhaps he gave the same presentation elsewhere and somebody did. Does anyone know?