“Over the last decade and a half, Matthew Bourne has virtually reinvented some of the sacred cows of the classical ballet repertoire: “La Sylphide,” “Swan Lake,” and “The Nutcracker” on his own markedly accessible terms. He’s aware, perhaps, that these works were probably never as “sacred” as purists would like to suppose, and he has invested them with a funny, sexy, surprising, mischievous, and even dangerous freshness. He has also discovered in them, and their musical scores, unsuspected and compelling story lines.”