In comparison to the text, Alfred Hitchock did a wonderful jon of creating the film in a way that would capture the attention of its audience the way the text did. They were a few changes that Hitchcock did to make this possible. One of the first things I noticed he changed was the names of the characters. In the text, the main character's name was Hal. Jeffries and was changed to L. B. Jefferies. Inspector Boyle was changed to Lieutenant Doyle. Camera angles and shots also played a major role in the product of translating the text to film. There was a consistent "watching" them of the main character analyzing the other characters to create the story. To help create Jefferies, would have several POV shots in the film for the audience to feel like they're seeing from his apartment. Shots used in this were Pan shots, which we really important to also follow what Jeffries appeared to be looking at.