Deneuve in the Kitchen... Mary-Kate Olsen at Chez Regine

SHOWING OFF: Amanda Lear was in full rehearsal at the Givenchy presentation Wednesday night for the one-woman show she starts in France next year, regaling reporters with tales galore. She’s also heading to Rome to record a new album. “So perhaps there’s still some life in the old bag,” she said, adding she’s back on the love market since she split up with her Italian boyfriend. “He was half my age, and I was with him long before Demi Moore.” Paris-based actress Lika Minamoto disclosed she’s working on a book about the Franco-Japanese cultural divide. “France is wonderful because you can make a living out of being an artist. It’s taken seriously,” she said. Voluptuous French actress Beatrice Dalle said she plays a nerd in her latest movie, “Domaine,” that’s due to start filming in Austria. “I play a mathematician, but it’s about the poetry of maths,” she said. Margherita Missoni, meanwhile, has experienced some teasing for wearing vintage sparkling Harper’s Bazaar frames — due to an eye problem. “Suzy Menkes says it’s my Sarah Palin look,” she laughed. “It is definitely not inspired by her,” said Missoni, who’s just finished a play in Italy.