“Sex and the City’s” Samantha Jones is a sexually confident public relations executive who can get almost any man she wants — and playing her helped Kim Cattrall survive her 40’s. 
   At age 41 Cattrall took on the role of Jones, who during the six seasons of the U.S. cable television series had countless nude sex scenes. 
   “She helped me get through my 40’s,” she said ahead of the worldwide release of the “Sex and the City” film this week, four years after the TV series ended. 
   “Actresses especially, they always accuse Hollywood of ageism, but I found that I was doing that to myself because I was really questioning at the age of 41 if I could indeed play a woman who was that sexual,” Cattrall said.
   “Could I still make the vamp real? I’m not kidding you, this was a true concern of mine,” she said of the role for which she won a Golden Globe. 
   And with Jones finally owning up to, and celebrating, turning 50 in the Hollywood version of “Sex and the City,” 51-year-old Cattrall said “it really gives me a lot of hope for the next decade.”