Kristen Stewart made a quick trip to Las Vegas for CinemaCon yesterday. She landed by private jet with her Snow White and the Huntsman costar Charlize Theron in the morning and by the end of the day was slipping out of a back door at Caesars Palace in casual clothes. During the visit, Kristen dressed up in a Cushnie et Ochs look to attend the annual movie event alongside Charlize, who later returned to accept the distinguished decade of achievement in film award. Kristen and Charlize have met up multiple times already to promote their Snow White movie, but Kristen is also busy with press for On the Road. She posed with Garrett Hedlund in a sexy Jalouse spread inspired by the flick. Kristen took a break from all work last weekend, though, when she hung out at Coachella with boyfriend Robert Pattinson.