Bruce Willis has compared making the "Die Hard" movies to childbirth. The 52-year-old actor - who reprises his role as maverick cop John McClane for "Die Hard 4.0" - says, like women and childbirth, if he remembered the physical pain he went through to make each movie he would never agree to do another one.

Bruce told BANG Showbiz: "There is a thing they say about women and childbirth - they say if women remembered the pain of childbirth there would be no more children born, everybody would only have one kid. But, as time goes by you forget the pain, and I forgot that I was hurt, cranky and irritable."