Trailer (promotion)

Movie trailers have now become popular on DVDs and Blu-ray discs, as well as on the Internet, livestreaming and mobile devices. Of some 10 billion videos watched online annually, film trailers rank third, after news and user-created video.^[1]


The trailer format has been adopted as a promotional tool for television shows, video games, books, and theatrical events/concerts.

Trailers tell the story of a film in a highly condensed fashion to have maximum appeal. In the decades since film marketing has become a large industry, trailers have become highly polished pieces of advertising, able to present even poor movies in an attractive light. Some of the elements common to many trailers are listed below. Trailers are typically made up of scenes from the film they are promoting, but sometimes contain deleted scenes from the film.


The key ambition in trailer-making is to impart an intriguing story that gets film audiences emotionally involved.^[22]


Most trailers have a three-act structure similar to a feature-length film. They start with a beginning (act 1) that lays out the premise of the story. The middle (act 2) drives the story further and usually ends with a dramatic climax. Act 3 usually features a strong piece of "signature music" (either a recognizable song or a powerful, sweeping orchestral piece). This last act often consists of a visual montage of powerful and emotional moments of the film and may also contain a cast run if there are noteworthy stars that could help sell the movie.


Voice-over narration is sometimes used to briefly set up the premise of the film and provide explanation when necessary, although this practice has declined in the years after the passing of voice-over artist Don LaFontaine. Since the trailer is a highly condensed format, voice-over is a useful tool to enhance the audience's understanding of the plot. Hollywood trailers of the classic film era were renowned for clichés such as "Colossal!", "Stupendous!", etc. Some trailers have used voice over clichés for satirical effect. This can be seen in trailers for films such as Jerry Seinfeld's Comedian and Tenacious D in The Pick of Destiny.


Music helps set the tone and mood of the trailer. Usually the music used in the trailer is not from the film itself (the film score may not have been composed yet). The music used in the trailer may be:


A cast run is a list of the stars that appear in the movie. If the director or producer is well-known or has made other popular movies, they often warrant a mention as well. Most trailers conclude with a billing block, which is a list of the principal cast and crew. It is the same list that appears on posters and print publicity materials, and also usually appears on-screen at the beginning (or end) of the movie. Studio production logos are usually featured near the beginning of the trailer. Until the late 1970s, they were put only at the end of the trailer or not used at all; however, Paramount Pictures was the first studio to use its actual studio logo at the beginning of its trailers in the 1940s. Often there will be logos for both the production company and distributor of the film.


Many trailers are mixed in Dolby Digital or any other multichannel sound mix. Scenes including sound effects and music that are enhanced by stereophonic sound are therefore the focus point of many modern trailers.


Trailers preceding feature films are generally presented in the same format as the feature, being either 35 mm film or a digital format. High bandwidth internet connections allow for trailers to be distributed online at any resolution. Since the advent of Digital 3D, it has become common for a 3‑D feature film to be preceded by one or more trailers that are also presented in 3‑D.