Rope

About Rope: Rope is one of Alfred Hitchcock's early thrillers that he directed. It was released in 1948.
 It stared James Stewart, John Dall, Farley Granger. It was based from the play that was made before. 

In the trailer they add suspense and show you clips that wasn't in the film. The characters Brandon and Philip considered themselves Nietzschean, supermen who believed that they are superior intellectually which made them above the law. "Good and evil, right and wrong were invented for the ordinary average man, the inferior man, because he needs them," claims Brandon the deluded mastermind of the murder. In rope their is no hero who has to stop the villain. The criminal act has already occurred and the film is set just after the events and rather than someone trying prevent is about them trying to cover it up. With the filming they could not stop and start the film so they had to film 15 minutes at a time straight and the only cut that would occur would be when changing the film. The film uses dramatic irony as the audience we know something most of characters doesn't and they built suspense when certain characters came near the chest or used the rope for things. They would play music to get the audience on the edge of their seats. Hitchcock uses devices such as suspense, cliff hangers and red herrings. He did this from the very start of the film and when people come close to the body which kept the audience waiting for when someone discovers the body.