Egyptian actress Nessrine Imam has revealed that actor Omar Sharif remains unaware that she has married producer Tamer Hosni because she simply hasn't told him.   "Mr Sharif didn't know I got married. It never came up, because our phone calls are basically about me making sure he's well," she told Arabstoday. She added: "Every time I talk to him, he says 'Ah, I'm an old man now' and I tell him 'I wish all old men were like you,' because he's still incomparably good-looking and attractive." Imam and Sharif first appeared together in the TV series Hanan w Hanin several years ago.