In 2011, the remake of Tinker Tailor Soldier Spy was released at the Venice Film Festival. Gary Oldman starred as George Smiley the fictionalized "Circus" (British Intelligence) Agent who in 1963 flushed out Prime Minister John Profumo the "mole" planted by the Russians at the heart of the British Government.
Tinker Tailor Soldier Spy premieres By Ed, Stan Brin & Chris OakleyDescribed as a spy with "the cunning of Satan and the conscience of a virgin" Smiley was charged with investigating leaks of high grade intelligence material to the Soviet Union. During those investigations, he accidentally discovered a grave personal weakness in the private life of the Prime Minister.
A senior naval attache at the Soviet embassy in London Yevgeny "Eugene" Ivanov had recently been turned by the Circus. Incredibly, he was engaged in a two-year long affair with a London call girl called Christine Keeler who recently met Profumo at a house party at Cliveden, the Buckinghamshire mansion owned by Lord Astor.
Smiley provided Ivanov with concocted details of a forthcoming assassination attempt to kill President Kennedy by a US marine, Lee Harvey Oswald, who had returned to the States after defecting to Russia. When that intelligence material was intercepted by British agents in Moscow, he had established that Profumo was the mole.