Kim Cattrall has reportedly agreed to appear in a Sex And The City movie.

The team behind the popular TV show has been planning a big screen spin-off since its final episode aired three years ago.

The show ran for six seasons before it ended in 2004, amidst rumours of behind-the-scenes rivalry between Cattrall and her co-star Sarah Jessica Parker.

However, an insider told Heat: "Kim saw the script and her storyline is so good that she realised she'd be absolutely crazy to refuse.

"The girls had great fun doing the show, so they all realised they'd be silly to turn down a movie."