Sharon stone shows her teeth. Photo: Getty Images

Sharon Stone's famous temper got her into trouble on a flight from Kalispell, MT to Salt Lake City, UT yesterday.

According to a witness on board:

"The flight attendant in Kalispell asked her to gate check her bag and Sharon refused and got into a huge fight with her. They eventually took the bag from her and she screamed at her assistant with her and made a scene during the entire flight."

The source told me: "When the plane got to Salt Lake City it was met by armed Salt Lake City police officers. She was detained. Its not clear if she was arrested."

But Stone's rep, Paul Bloch, says the person who met her at the airport was "private security hired by Sharon. She was not detained by police." Bloch also said Stone was traveling alone, without an assistant.

"Sharon had been visiting her father in Montana, and was approved to take both bags on the plane. When she got to the plane, she told me the stewardess screamed at her that she couldn't take both bags on board," said Bloch.

According to Stone's version of events, the stewardess on the Delta connection operated by SkyWest "screamed" at her not once, but twice, over the luggage, before the actress eventually surrendered a bag.

After hearing Sharon's take on the matter--specifically that police weren't involved--we went back to the witness. The source said: "It was definitely police, the uniform had a big Salt Lake City police patch on the side. And there were also at least four customer service/security agents from the airline. The flight attendant she fought with was named Ebony. Ms Stone was definitely acting irrationally."

Finally, a Salt Lake City, UT Airport media spokeswoman confirmed that at least one uniformed police officer was awaiting Stone at the gate...but she said it was at Stone's request, for security.

We have to wonder whether she needed quite as much "security" before she got into the fight with the flight attendant.