WarGames, 1983. An American science-fiction film. Written by Lawrence Lasker and Walter F. Parkes. Directed by John Badham. Starring Matthew Broderick, Dabney Coleman, John Wood, and Ally Sheedy.
The film follows David Lightman (Broderick), a young hacker who unwittingly accesses WOPR (War Operation Plan Response), a United States military supercomputer programmed to predict possible outcomes of nuclear war. Lightman gets WOPR to run a nuclear war simulation, originally believing it to be a computer game. The simulation causes a national nuclear missile scare and nearly starts World War III.
The film was nominated for three Academy Awards. A sequel, WarGames: The Dead Code, was released in 2008.