Super-dooper, Riley! I watched the whole vid...well done, wasn’t it. I never saw credits on a roll...no matter, I think that I recognised most of them. The little list of crushing “ he said, she said’s” were really good ones. Chapeau for this posting.
There's several of those old stars "dancing" to contemporary music videos on YouTube. On one, someone went to the bother of identifying the films, the actors and the original tunes and at what time they appear in one of the videos and posted it in the comments.