Paparazzi target, fashion-designer darling — and, oh, yes, actress — Kate Bosworth sashayed onto the stage of the Late Show With David Letterman last night to plug her MIT-students-con-casinos film 21 and talk movies, Vegas, and her recent trip to New Zealand, where she and her beau, James Rousseau, went skydiving. Bosworth brought along some footage of her jump — her first — and blushed while fielding questions about her jump partner, who Dave seemed particularly (albeit innocently) interested in. Clip above.