Plot: From its origins in ninth-century China to its modern incarnation as a Christmas pantomime, Cinderella has endured as one of the best-loved fairytales. But what has made this fable of domestic abuse so popular for so long? Marina Warner, author of several studies on legendary heroines, reinterprets the myth through some of its forgotten versions, and shows how today's simpering weakling has at other times been seen as an innocent victim of incestuous longings, or even as a gutsy fighter who breaks her evil stepmother's neck