Set during the Cold War, this gripping espionage thriller follows retired intelligence officer George Smiley, played by Gary Oldman, as he is called back to uncover a Soviet mole within the British Secret Service. The film boasts an impressive ensemble cast, including Colin Firth, Tom Hardy, and Benedict Cumberbatch, who deliver compelling performances. Directed by Tomas Alfredson, the movie is noted for its intricate plot and atmospheric tension. It received three Academy Award nominations, including Best Actor for Oldman. For those interested, it can be viewed for free on 123Movies / Movies123.