All I knew about Cyd Charisse for the longest time was that she had her legs insured for millions of dollars (somehow this still strikes me as the epitome of glamour). Then I saw her in The Band Wagon and was like, Oh, that's why. (The dancing scene in the park is unbelievable. )
I also like this anecdote: She said her husband, the singer Tony Martin, could always tell with whom she was dancing. "If I was black and blue," she said, "it was Gene. And if it was Fred, I didn't have a scratch." (See that boys? Be a better dancing partner and maybe you'll get to dance with someone like Cyd.)
Gorgeous, incredible dancer, class act.