The 53-year-old actress has just finished filming the second film instalment in the hugely successful franchise - about a group of friends in New York and their relationships - and believes the drama has given a fresh dimension to people's viewing options.
She said: "Re-examining what happens to women in their 30s, 40s and 50s is, in some ways, incredibly new territory. I was driving to work and there was a big Billboard with Denzel Washington looking like another film about the end of the world.
"'Sex and the City' really is something quite new and fresh compared to that. There's so much more to tell. It's also something that women crave."
Kim also said that despite the show's overriding theme that women can have it all, she has had to forsake much for in her personal life for the show, including her relationships, but insists she is happy with her choices.
She added: "The most difficult thing about my job is that I do a lot of 19-hour days. It's really difficult to have a life, never mind a relationship. But I don't have any regrets, really. I'm quite content. I'm very stubborn and persistent. I just keep working.
"I feel like I'm living my fantasy in a way. I'm a very independent woman. I don't have to rely on anyone. I enjoy people. I'm very close to my family. I have pretty good values. I don't really want for much. It's all good."