Kehoe: Editing in "Let Me In"

I recently viewed the film Let Me In, which is about a young boy who is ignored at home and bullied at school but befriends a mysterious girl who turns out to be a vampire. The film’s use of editing is excellent and apparent from the first scene, which opens upon a man jumping to his death out of his hospital window in the dead of night, nurses and police rush into the room only to find a broken window and the mysterious message “I’m sorry Abbey” written on a pad of paper. The next scene is in bright daylight with the subtitle “one week earlier.” The film’s editors had good reason to begin the film with the hospital scene and then flashback a week in the next scene. This flashback technique acts as a hook to grab the audience’s interest. In the first scene, the audience does not know who Abbey is, or why the man jumps to his death; all the audience is given is the assurance that these questions will be answered by viewing the events of the previous seven days.
Another notable editing technique is the angle and proximity of the camera in the scenes with Owen and his mother. Owen is the film’s protagonist, and is the constant target of bullying at school. In the scenes where Owen is talking to his mother, the camera is placed in such a way to make Owen’s mother blurry and out of focus. This is to represent how his mother is neglectful of Owen and his problems.