The actress makes a splash at her book signing. Plus: Ashton Kutcher, Paris Hilton and more

BUSINESS MODE

What's with Ashton Kutcher's conservative new look? He's just doing his job Saturday on the Los Angeles set of The Dinner Party, a retelling of the Sidney Poitier-Katharine Hepburn film Guess Who's Coming to Dinner, in which he plays the disliked fiancé to Bernie Mac's unhappy dad.