The Sex and the City 2 cast may have just gotten even hotter! A set insider tells Life & Style, "While the regular cast filmed all day on Oct. 12 in the lobby bar of The Empire Hotel, everyone was surprised when Penélope Cruz made an appearance."

Insiders have said that Sarah Jessica Parker's character catches Mr. Big flirting with another woman during Smith Jerrod's movie premier after party. The woman is rumored to be Penélope Cruz. A guest was heard saying, "I think it was Penélope Cruz. She is breathtaking!"

Though Sarah Jessica Parker and Chris Noth may not be getting along on screen, they are having a great time working together on set. The insider tells Life & Style, "You can tell that Chris Noth and Sarah Jessica Parker really like working together. She would put her hand on his shoulder a lot when she would laugh or tell a story. Like a friend you've had for years."

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Photo Credit: Startraks