The document summarizes research on common elements of horror, fantasy, and action movie genres by analyzing trailers for films in each genre. For horror films, the analyzed trailers had dark lighting, eerie silence, jump scares, unsettling music, unexplainable noises, and changing shots meant to add mystery. Common fantasy film elements included dramatic music, speeches, armies seeking revenge in foreign settings with heroes having tragic backstories. Analyzed action film trailers were unclear on specifics but included violence, fire, guns, and being part of film franchises or trilogies. The document concludes by explaining why horror films, though sometimes lower budget, can be highly profitable due to built-in audiences enjoying fear-induced