WarGames is a hacking movie directed by John Badham. It was released in 1983.

Synopsis

A young computer whizz kid accidentally connects into a top secret super-computer which has complete control over the U.S. nuclear arsenal. It challenges him to a game between America and Russia, and he innocently starts the countdown to World War 3. Can he convince the computer he wanted to play a game and not the real thing?

Links & References

WarGames Information

Movie entry in Internet Movie Database.