Based on the classic novel of the same name, the international thriller is set at the height of the Cold War years of the mid-20th Century. George Smiley (Gary Oldman), a disgraced British spy, is rehired in secret by his government - which fears that the British Secret Intelligence Service, a.k.a. MI-6, has been compromised by a double agent working for the Soviets. -- (C) Focus Features
