Ian McDiarmid (born 11 August 1944) is a Scottish actor and director best known for portraying Emperor Palpatine in the Star Wars film series. He has received an Olivier Award for Best Actor and a Tony Award for Best Featured Actor in a Play for his performances. Wikipedia
During the Cold War, an American lawyer is recruited to defend an arrested Soviet spy in court, and then help the CIA facilitate an exchange of the spy for the Soviet captured American U2 spy plane pilot, Francis Gary Powers.