Here's one my most favorite dance scenes from the 1987 movie, White Nights. I find it amazing how Baryshnikov and Gregory Hines are doing the same moves, but so differently. They had different training, so they attack the routine differently, but they stay perfectly in sync. The finesse.
(Also, the song is Prove Me Wrong by David Pack, the lead singer of Ambrosia. A gem of an 80s AOR song.)