Short Circuit is a 1986 American science fiction comedy film directed by John Badham and written by S. S. Wilson and Brent Maddock. The film centers on an experimental military robot that is struck by lightning and gains a human-like artificial intelligence, prompting it to escape its facility to learn more about the world. It stars Ally Sheedy, Steve Guttenberg, Fisher Stevens, Austin Pendleton, and G. W. Bailey; Tim Blaney is the voice of the robot Number 5.