Marvel Studios is setting Matthew Vaughn to direct “Thor,” based on the Marvel Comics character. Marvel is aiming for a pre-strike production start this winter. Mark Protosevich (“I Am Legend”) did the adaptation of the comicbook franchise that launched in 1962. Thor is a blonde-tressed, hammer-wielding hero who’s sent to Earth to protect mankind. Vaughn’s deal is closing just as Paramount releases the Vaughn-directed “Stardust” today. The Neil Gaiman novel adaptation stars Robert De Niro and Michelle Pfeiffer. “Thor” marks Vaughn’s second effort at a superhero movie. He was attached to direct “X-Men 3” before bowing out for personal reasons.