9. The Evolution of Catwoman
Anne Hathaway is a brilliant and beautiful actress. Catwoman is an iconic comic book character. It should be a match made in heaven, with the relationship between her and Batman - and the constant switching from career criminal to love interest - something that should develop over several installments. Introducing Catwoman at the end here (if The Dark Knight Rises is the end), without any chance of development, would be a disservice to a complex character.