For the real story behind Sex and the City's decision to cast 55-year-old ballet legend Mikhail Baryshnikov as Carrie's new love interest, read my interview with exec producer-star Sarah Jessica Parker in today's Insider. And don't let her snippy response to the Mr. Big (Chris Noth) question mislead you into thinking the 38-year-old Square Pegs grad is a diva. Parker left a rather sweet (and very Carrie-esque) message on my voice mail later that evening to make sure I got everything I needed and to thank me for the interview. She said a bunch of other stuff too, but that's between her, me and everyone who crowded around my desk Friday to listen to the playback.