The document discusses conventions for different movie genres in trailers. It analyzes trailers for romantic comedy, action/sci-fi, horror, and action/comedy genres. Key conventions discussed include audio tones that build tension, close-up shots of emotions, fast-paced cuts for action scenes, and providing just enough of the plot to intrigue audiences without giving everything away. The document concludes by stating these genre conventions will inform the creation of the author's own action/comedy movie trailer.