This document discusses various codes and conventions used in film trailers, teen trailers, and teen drama/thriller trailers. It notes that film trailers typically include a voiceover, actors/directors names, and save the title for the end. Teen trailers focus more on relating to the target audience and may include less information about awards or directors. Teen drama/thriller trailers create tension without revealing the full story and include dramatic themes like abuse or death. Pacing and music are also used differently between genres to appeal to audiences.