Sarah Jessica Parker stars in 'Sex and the City: The Movie'. - Contributed

Sarah Jessica Parker has revealed her Sex and the City character is "fundamentally changed" in the new movie.

The 42-year-old actress - who plays sex columnist Carrie Bradshaw in the hit US TV show - says the character is drastically different because Sex and the City: The Movie picks up a few years after where the show left off.

She said: "Something major happens that fundamentally changes who Carrie is. The movie doesn't pick up right where the series ended either. It's a few years later and it's so packed with stuff."

Meanwhile, Parker's co-star Cynthia Nixon has spoken about how her character, high-flying lawyer Miranda Hobbes, develops in the movie.

She said: "Miranda is still living in Brooklyn, is still unhappy about it, and is still advancing at her job and in her firm.

"Her son Brady is thriving, but her marriage is kind of not doing so great. We are dealing with unfaithfulness, but even more than unfaithfulness, I think we are dealing with the daily grind that can take its toll on a relationship."

Kristin Davis, who plays 'Park Avenue Princess' Charlotte York Goldenblatt in the show, quashed rumours of the four actresses, including Kim Cattrall, fighting on set.

Sense of familiarity

She said: "It's almost like going back to high school, yet not. There's a sense of familiarity between us, and we are in many ways like sisters. We finish each other's sentences and we were never separated from each other." Nixon added: "The first day back on set was wild! We were back in these outfits and these heels again.

"We had to relearn how to walk down the street in unison and not teeter over in our heels, but it kind of felt great. What it felt like was a four-headed, eight-legged organism!"

Sex and the City: The Movie will be released worldwide at the end of May.