John Badham directed WarGames (1983), the film about teenager David Lightman and the WOPR computer.
WarGames stars Matthew Broderick as David, a gifted computer user who accidentally connects to a military system while searching for video games. He selects a simulation involving nuclear conflict, but the system begins treating the scenario as real. The film turns Cold War fears and early home computing into a suspense story about automation and mistaken assumptions.
Badham was an established director whose other credits include Saturday Night Fever, Blue Thunder, and Short Circuit. His direction balances the film’s technological premise with a coming-of-age adventure, making the material accessible to audiences unfamiliar with computer networks.
WarGames is often remembered primarily for its cast or its famous computer terminology, so its director can be confused with directors of other 1980s technology thrillers. The movie was released during heightened public concern about nuclear weapons and helped bring computer security into popular culture.