Teaser trailers are short advertisements, typically 30-60 seconds, that are released before the full theatrical trailer to generate hype for an upcoming film. They often feature unfinished scenes since they are made early in production. Their goal is to build interest without revealing the film's plot. Early examples include teasers for Superman and Batman that successfully re-ignited excitement. Modern trailers increasingly focus on online distribution. Horror film teasers effectively use music, titles, and voiceovers to advertise the tone without giving away the story. Elements like these that are analyzed in Saw trailers can be applied to the student's own coursework trailer.