The document discusses key features, codes, and conventions of film trailers. Film trailers are typically 2-3 minutes and aim to persuade audiences to watch the upcoming film. Trailers use techniques like three-act structure, voice over narration, soundtrack, casting, title/release date, and production logos. These elements aim to advertise the film, establish tone, introduce characters, and attract audiences in a short time frame before the film's release. Trailers follow standard conventions to effectively market films to target audiences.