The document discusses the filmmaker's process in developing a sci-fi horror film trailer. They started with the goal of creating a horror/thriller but expanded the genre to include elements of science experiment gone wrong and zombies. Visual elements like props, lighting, and filters were used to convey horror conventions. The teaser trailer structure has a beginning, middle, and leaves the audience guessing without a definitive end. The intended audience is male teenagers and young adults, as signaled by intertitles explaining the plot.