A Cold War espionage thriller from master director Alfred Hitchcock, this 1966 film follows an American physicist who stages a dramatic defection to East Germany to uncover the secrets behind a revolutionary polymer compound. What begins as a calculated intelligence operation becomes a desperate race for survival as the protagonist and his wife must navigate treacherous terrain and double-crosses to return home. Featuring Paul Newman and Julie Andrews in career-defining roles, with supporting performances by Lila Kedrova.