Maximum Overdrive is a 1986 American science fiction action horror film written and directed by Stephen King. The film stars Emilio Estevez, Pat Hingle, Laura Harrington, and Yeardley Smith. The screenplay was inspired by and loosely based on King's short story "Trucks", which was included in the author's first collection of short stories, Night Shift, and follows the events after all machines (including cars, trucks, radios, drones, arcades, vending machines, etc.) go sentient when the Earth crosses the tail of a comet, initiating a worldwide killing spree.