Diane always does these secret photo shoots in foreign fashion magazines . . . but I catch them every time. The ex-model (not so ex, actually) showed her "individuallure" to Vogue Italia last month. Photographed by Mark Seliger, she mixes with theater talents in glorious gowns and moody lighting. She twists and turns, jumps and lounges; she looks great. If you're a Diane fan, revel.