Continuity mistake: When Rupert gives ice cream to Brandon, they are besides a wall between the living room and the entrance of the house but the shot later, they are on the other side of it.
Rope (1948)
Plot summary
Directed by: Alfred Hitchcock
Starring: James Stewart, Farley Granger, John Dall, Dick Hogan, Edith Evanson
Just before hosting a dinner party, Philip Morgan (Farley Granger) and Brandon Shaw (John Dall) strangle a mutual friend to death with a piece of rope, purely as a Nietzsche-inspired philosophical exercise. Hiding the body in a chest upon which they then arrange a buffet dinner, the pair welcome their guests, including the victim's oblivious fiancée (Joan Chandler) and the college professor (James Stewart) whose lectures inadvertently inspired the killing.
Big Evil
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Trivia: At first, this film seems to have only one scene and two shots, one outside and another inside. Actually, it is divided in a series of 10 minute continuous shots, 10 minutes being the maximum duration of filming possible without reloading the camera. Every 10 minutes, the camera zooms on a dark object and then cuts.