Kim Cattrall avoids Sarah Jessica Parker at SATC after party

Kim Cattrall tried her hardest to avoid Sarah Jessica Parker at the after party for the Sex and The City movie premiere in London earlier this week -- fueling rumors of a rift between the two co-stars.

While Kristin Davies and Cynthia Nixon mingled with the guests, including Kelly Rowland, Kim and Sarah stuck to their separate VIP areas all evening.

A source said: "It was pretty strange.

"They made such a show of unity on the red carpet earlier."

Parker, 43, and Cattrall, 51, reportedly fell out during the filming of the television show, which ended in 2004.

And it had previously been reported that attempts to make the movie stalled when Cattrall demanded the same money as Parker who was always paid more for the television series due to her additional role as executive producer.