Jack Nicholson can't hit on women in public anymore.

The 76-year-old actor was branded a ''sex legend'' after bedding countless females during his heyday but, despite still feeling young at heart, he admits the opposite sex are no longer interested in him because of his ageing looks.

Speaking to The Sun newspaper, he said: ''I'm still wild at heart but I've hit bio-gravity. I can't hit on women in public any more. I didn't decide this, it just doesn't feel right at my age.''

Jack - who has had high-profile relationships with actress Anjelica Huston, who he was with for 17 years, singer Michelle Phillips and model Janice Dickinson - insists his career choice in the acting industry was largely ruled by trying to impress women and his confidence peaked when they found him ''irresistible''.

He explained: ''If men are honest, everything they do and everywhere they went was for a chance to see women. A lot of me being an actor was about that, and about me.

''There were points in my life when I felt oddly irresistible to women. I'm not in that state now, which makes me sad.''

However, the iconic Hollywood star believes there are some positives to ageing because he's notice a change in his characteristics.

He said: ''But I so believe that a lot of the improvements in my character have come through ageing and the diminishing of powers. Some of it isn't so great, like the hair that comes and the hair that goes.''