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'Cloak and Dagger'
Spy games meet video games in this flick from 1984, which takes a kid obsessed with an espionage game, adds in real spies, and sprinkles in father and son reconciliation to boot. Henry Thomas of 'E.T.' fame plays the game-obsessed kid, whose unfortunate habit of getting immersed in the fantasy world means no one believes him when he witnesses a very real murder and is entrusted with ... a video game cartridge containing military secrets.