Former Sex And The City star Cynthia Nixon had no idea her popular U.S. Tv series inspired spin-off The Carrie Diaries, even after its star, AnnaSophia Robb, introduced herself as the lead character.

The Emmy-winning series starring Sarah Jessica Parker ended its six season run in 2004, and went on to spawn two feature films, and although Nixon reprised her role as attorney Miranda Hobbes in both movies, it seems as if she's left the show behind her.

Robb, who plays the younger version of Parker's Carrie Bradshaw, tells Vanity Fair she ran into Nixon at a Broadway show in New York City and excitedly introduced herself to her Tv counterpart's best friend, but didn't exactly receive the reception she was looking for.

Robb recalls, "I was at the counter, and I went, 'Oh, hi, I'm on The Carrie Diaries show. I'm a big fan'. It was just kind of one of those New York run-ins. But she had no idea, which is the best part."

While Nixon may not be aware of the reboot, co-star Kim Cattrall recently lauded actress Lindsey Gort, who plays the teen version of Cattrall's iconic character, Samantha Jones in The Carrie Diaries.