The big Hollywood Premiere of the G.I. Joe: The Rise of Cobra movie happened last night at the famous Chinese Theatre. The stars of the movie like Sienna Miller and Channing Tatum were all there and glammed up, but fame hunters Heidi Montag( Pratt) and her new husband Spencer Pratt were also there. Heidi has just done a cover for Playboy Magazine and of course they brought the magazine along! The two of them were posing and showing off all the way down the red carpet! Typical!