We've all seen the pics of Miley with Kim Cattrall for the upcoming Sex and the City 2 flick, but while Miley walked away with a lot of stories to brag about, she did not get to keep the dress she dons in the film. "I didn't get to keep the dress because they need it for Kim," Miley tells Extra. "But I got to keep the necklace. The necklace is cool. It's, like, these giant spikes, and I wanted to wear it while I was performing. My mom was like, 'That could be dangerous... You can't wear that on stage." It's better than pole dancing on stage though... right?!