The document discusses strategies for editing a horror film trailer, including setting the scene with text before showing any footage, editing some footage to look like home videos to show life before a character's death, and using common horror film settings and iconography. It recommends including a graveyard setting to imply a character's recent death and using a house setting, though typically safe, is often featured in horror films. Common horror film iconography that could be depicted includes symbols of death, blood, screaming female victims, murder weapons, dark places, and themes of good versus evil.