The Kremlin Letter

Set against the bleak and tension-filled atmosphere of the Cold War, 'Tinker Tailor Soldier Spy' delves into the world of espionage where an ousted British intelligence officer is called back to uncover a Soviet mole within MI6. Fans of 'The Kremlin Letter' will appreciate the intricate plot and the masterful depiction of Cold War spy games.

Although not directly related to international espionage, 'The Conversation' is a thriller that explores themes of surveillance, paranoia, and morality. It digs into the psyche of a private surveillance expert, and its slowly unraveling mystery and tense atmosphere will intrigue viewers who appreciate the subtlety and depth of 'The Kremlin Letter'.

In 'Three Days of the Condor', a CIA analyst's entire office is murdered, and he is thrust into a desperate survival bid. This film offers the same blend of paranoia and political thriller elements that make 'The Kremlin Letter' a gripping experience for its audience.

Adapted from another John le Carré novel, 'The Tailor of Panama' showcases a tailor who is coerced into spying. It's a story that twists and turns through deception and personal dilemmas, bound to satisfy anyone who enjoyed the complexity and moral grays of 'The Kremlin Letter'.

'The Fourth Protocol' focuses on the race between British intelligence and a KGB agent to prevent a devastating conspiracy. With a setup reminiscent of the cat-and-mouse games in 'The Kremlin Letter', this movie will impress fans of Cold War espionage dramas.