One good example of that blend of beauty and smarts is the 1957 film, "Nightfall," starring Aldo Ray, and - - as a villain - - costarring Brian Keith.
I read somewhere, years ago, that Mel Brook and Anne Bancroft were having a big argument. He put his hand on shoulder, and she pulled away saying, "Don't touch me! My body's an instrument!"
He said, "Really? Can you play 'Begin the Beguine?'" And that was the end of the argument because she started laughing.