"But to succeed on both the feminist and the fantasy level, the new Cinderella has developed rules and conventions as strict as a Joseph Campbell template. She should be pretty, but in a class-president way, not a head-cheerleader way. She should be able to stand up for herself (recall the Crouching Tiger moves of Shrek's Princess Fiona). She must be socially conscious — a result, says Meg Cabot, author of the Princess Diaries books, of Princess Diana's charitable work. And she should above all not want to be a princess — at least until she changes her mind. In Diaries, Prince and Ella, it's not the girl who must prove herself worthy of princesshood; princesshood must prove itself worthy of the girl."