The document analyzes common opening film techniques used in slasher films, providing examples from movies like Scream, It, Nightmare on Elm Street, Halloween, and The Others. It discusses techniques such as titling, camera movement, shot framing, camera angles, use of mise-en-scène, editing, sound, and actor positioning/movement. Specific shots and scenes are referenced to illustrate how these techniques are employed to set the tone and provide crucial information to viewers early in the film.