After his father got him a job with the US Central Intelligence Agency (CIA), Christopher Boyce’s sky-high IQ earned him top security clearance for the “Black Vault”, a heavily guarded complex within the CIA compound. It was through this room that government secrets, gathered by US satellites, passed—and landed right in Boyce's hands. The farthest thing from an American patriot, Boyce wanted to sell the intelligence to the Russian Embassy. All he needed was his drug-dealing sidekick, Andrew Daulton Lee, to put him in touch with the right people.

In "The Falcon and the Snowman", a 1985 American spy drama film based on the 1979 book "The Falcon and the Snowman: A True Story of Friendship and Espionage" by Robert Lindsey (a journalist and author of true crime books), it concerns the actions of Boyce and Lee selling US governmental secrets.

The film tells the story of Boyce (played by Timothy Dalton, b. 1960) and Lee (played by Sean Penn, b. 1960). They sold United States top security secrets to the Soviet Union.

Lee (Penn) is a drug addict and minor cocaine smuggler, nicknamed “The Snowman”. He agrees to contact the Soviet’s KGB’s (security agency) agents in Mexico on Boyce’s behalf. He is motivated by the opportunity to make money. He then plans to settle in Costa Rica, a nation that at that time had no extradition treaty with the US.

The two conspirators are eventually discovered and arrested. As the film ends, Lee and Boyce are then seen being escorted to prison.

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