The Ultimate Vampire Resource and Directory

Cute but silly, this 1983 cautionary fantasy stars Matthew Broderick as a teenage computer genius who hacks into the Pentagon's defense system and sets World War III into motion. All the fun is in the film's set-up, as Broderick befriends Ally Sheedy and starts the international crisis by pretending while online to be the Soviet Union. After that, it's not hard to predict what's going to happen: government agents swoop in, but the story ends up in the "hands" of machines talking to one another.