"Dancing is not, as with some of the other arts, a matter of short inspiration and quick effects; dancing is a vocation. A girl whom I choose to star as much gives her life to dancing as a novice entering a nunnery gives her life to religion." So says the demanding Madame Tania as she offers a long-awaited starring role to young Judith Nell, who has strived her whole life for success in the ballet. But her big break arrives just as she's...