'Tinker, Tailor, Soldier, Spy stars Alec Guinness as George Smiley, John Le Carré's familiar, ageing British Intelligence agent, called out of retirement to discover the identity of the high-ranking Russian mole who has burrowed deep into "The Circus"--codename for the British secret service. This slow-burning, complicated and ultimately rewarding BBC adaptation, dramatised by Arthur Hopcroft and directed by John Irvin, perfectly captures Le Carré's own insight into the shady underworld of spies and the political climate during the Cold War. The second of the BBC's well-regarded serialisations of John Le Carré's espionage bestsellers, Smiley's People is slightly less compulsively watchable than Tinker, Tailor, Soldier, Spy if only because Tinker, Tailor had a much stronger plot premise (who is the mole in British Intelligence?) than Smiley's People, which takes a very long time to come into focus. Retired spymaster George Smiley (Alec Guinness) wanders around Europe and visits a succession of desperate or eccentric characters as he plays a game which finally leads to another confrontation with and a possible victory over his Moriarty-like Soviet arch-nemesis Karla (an expressive but silent Patrick Stewart)