Now that movies based on kiddie toys are demomstrated box-office smashes (see Transformers), it was only a matter of time that a certain doll who has gone through more transformations than Optimus Prime would be the basis of a movie. Yes, Barbie: The Movie is in development . But on which of her many personas will the screenplay be based? Fun-loving beach girl in the striped strapless swimsuit? Presidential candidate with the Hillary Clinton bob (pictured)? Who should play her? And didn't Reese Witherspoon already play a reconstructed and adorably accessorized Barbie in the Legally Blonde movies? Should Barbie be an entrepreneur, a homemaker, a politician? What conflicts should she encounter?