Sarah Jessica Parker was all dressed up last night for an evening at the School of American Ballet's Winter Ball in NYC. After her fun-filled time at the Oscars, SJP is getting more celebrating out of the way before she has to get down to work. In addition to the next Sex and the City movie, she's also set to start work with Hugh Grant in May on Did You Hear About the Morgans?, which just added Mad Men's Elisabeth Moss to the cast.