This is one of the greatest dance sequences in musical history: The Red Blues from Silk Stockings. You expect Cyd Charisse's dancing to be fabulous and it is. But this is also very funny and clever. Just watch how the choreographer (Eugene Loring, I think. Definitely not Hermes Pan) managed to work Russian themes in. The throw-away comment about life in the Soviet Union that the whole sequence is, remains priceless. No wonder critics were sniffy about Silk Stockings.