sentences:  It's the story of a teenage skateboarder (played by Gabe Nevins) set against the backdrop of a police investigation into a mysterious death.Van Sant wrote the draft script in two days after reading and deciding to adapt Nelson's novel.To cast the film's youths, Van Sant posted an open casting call on social networking website MySpace inviting teenagers to audition for speaking roles, as well as experienced skateboarders to act as extras.