Producer Nick Wechsler has optioned screen rights to Throttle, a 60-page novella written by father-son authors Stephen King and Joe Hill. Wechsler used his own coin to option the tale. The protags in the King-Hill novella are father-son members of a motorcycle gang that’s chased through the desert by an 18-wheel tanker truck.The novella will be published in 2009 in “He Is Legend,” an anthology dedicated to Richard Matheson, author of “I Am Legend.” “It has elements of iconic films like ‘Duel’ and ‘Breakdown,’ but with a horror element that I want to push,” Wechsler said. Literary collaboration is the first between King and his son.