Naomi Watts joins a galaxy of female stars posing nude for the 2007 cult Pirelli calendar. Next year's calendar also features veteran sex symbol Sofia Loren, who first featured on magazine covers half a century ago, dressed up only in diamond earrings. Other stars include Spain's Penelope Cruz, US star Hilary Swank and France's Lou Doillon, the daughter of singer-actress Jane Birkin. [More]