Clever, intriguing thriller. Directed by Joseph L Mankiewicz, written by Anthony Shaffer and based on his play, this is a great exhibition of well-written dialogue, excellent, keep-you-guessing, twists-and-turns plot, solid direction and two brilliant actors - Laurence Olivier and Michael Caine - at the top of their game. Very clever, original and powerful.
Not perfect - the first half felt a bit clumsy at times and not entirely watertight, plot-wise in spells. The clown outfit was a tad silly and unrealistic. The seeming lack-of-watertightness makes sense in the end, so is not ultimately a problem, but at the time it was a bit jarring.
Remade in 2007 with Michael Caine taking Laurence Olivier's role, Jude Law taking Michael Caine's role, written by Harold Pinter and directed by Kenneth Brannagh. On paper the remake had the potential to be as good as the original but ultimately falls very far short. Feels like a play, and just seems pretentious, lacking in suspense and empty. Shows just how good the 1972 version is, as it was based on the same play.