Conventions of a film trailer

What are the most recognisable conventions of a film trailer?

• They highlight the best moments of a film.
• The audience are not shown the narrative order of events.
• They film stars are showcased.
• Some images stay on screen just long enough for our minds to comprehend them.
• Conversations between characters usually consist of one line each.
• Unusual angles are often used to show events or characters.
• Action is interspersed with credits on screen.
• Voiceovers tell the story and give credit information (rarely used in horror trailers).
• Music plays and important role in creating an atmosphere and in horror creates suspense and tension.
• The title of the film doesnt appear until the end.
• The trailer builds to a climax, where it ends.