The Trailer...?

A trailer, or more specifically a movie/film trailer, is a type of advertisement that has developed over time to suit the needs of films, in their specific genres. They act as a the middle man between the cinema and the consumer, giving the consumer an idea of what the film might be like, and whether they should go watch it or not. This also gives the producer of the film an opportunity to reflect the film in they way they want. A traditional trailer uses clips from the film itself, editing them together in a genre specific way, usually without giving away important parts of the plot, which would render seeing the full film pointless. A voice over is often used to narrate parts of the trailer, to further allure the audience. The name trailer, comes from the convention that the advertisement "trails" behind a film shown previously at the theatre. This is because trailers were shown in between films at theatres in 1913, when the trailer was first invented.