The title, King Is Dancing, refers to young and older Louis XIV. The story, however, centers on Jean Baptiste Lully, the Italian composer and dance choreographer. Mr. Lully struggles to find a place for himself in the court and fights (dirty) to retain his place.
The music and dancing were great. There were plenty of good looking shots of the court and landscape. The story line plodded along. I only felt an emotional attachment to these characters: Lully's wife and Moliere; I don't know if it was intentional on the part of the script or direction, but all the other characters/actors left me cold.