Farewell (2009)

What it's about

An intricate thriller about an ordinary man thrust into the biggest theft of Soviet information of the Cold War. Right after the Soviet invasion of Afghanistan. A French businessman based in Moscow, Pierre Froment, makes an unlikely connection with Grigoriev, a senior KGB officer disenchanted with what the Communist ideal has become under Brezhnev. Grigoriev begins passing Froment highly sensitive information about the Soviet spy network in the US.