WarGames is a thriller starring Matthew Broderick, Dabney Coleman, John Wood, Ally Sheedy and Barry Corbin in a story about a tennager who hacks into a computer system only to be challenged to play what he thinks is a game entitled 'Global Thermonuclear Warfare' but in reality has started the Third World War. WarGames was directed by John Badham in 1983. Research WarGames
 
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