United Kingdom, Dec. 15 -- George Clooney has given up "kissing girls" on screen due to his advancing years.

The 64-year-old Hollywood heart-throb - who is father to eight-year-old twins Ella and Alexander with his lawyer partner Amal - has admitted he can no longer see himself as a cinema Lothario and now hopes his career will emulate that of movie legend Paul Newman.

He told the Daily Mail newspaper's Richard Eden: "I've been trying to go the route Paul Newman did: 'OK, well, I'm not kissing a girl any more'."

Clooney added: "When I turned 60, I had a conversation with my wife. I said: 'Look, I can still play basketball with the boys. I play with 25-year-old guys'.

"I can still hang, I'm in shape. But in 25 years, I'm 85 years old. ...