The document discusses various conventions and techniques used in film trailers. It provides details on structural elements like openings, build-ups, and depicting problems and events. It also covers functions of voiceovers like providing background, character information, and building anticipation. Trailers aim to encourage wide audiences and may highlight appealing but non-chronological clips. Analysis of selected trailers should describe their structural elements and use of techniques like voiceovers. The task is to analyze two film trailers of the same genre and create a Prezi presentation discussing represented genres, narratives, target audiences and other specified elements.