Purpose of a Trailer

• To help market the film for high box office ratings
• Most films rely on the first weekend it's released for it's success
• "Since the purpose of the trailer is to attract an audience to the film, these excerpts are usually drawn from the most exciting, funny, or otherwise noteworthy parts of the film but in abbreviated form and usually without producing spoilers. For this purpose the scenes are not necessarily in the order in which they appear in the film. A trailer has to achieve that in less than two and a half minutes, the maximum length allowed by the MPAA. Each studio or distributor is allowed to exceed this time limit once a year, if they feel it is necessary for a particular film. http://en.wikipedia.org/wiki/Trailer_(film)

Several ways marking is developed are: Trailers, posters, magazine and newspaper covers, websites, actors promotion interviews, star names, fansites and games.

These tasks set: Trailer, Magazine and Poster are mirrored from an advertising campaign: "An advertising campaign is a series of advertisement messages that share a single idea and theme which make up an integrated marketing communication (IMC). Advertising campaigns appear in different media across a specific time frame." - Wikipedia

Marketing can be seen on the internet, bus stops and busses, magazines and newspapers, on television, in the cinema, before rental DVDs, radio, billboards and film merchandise (synergies).

Factors that makes you want to see a film are: Actors and directors, the genre, new unseen ideas, the plot/storyline, viral marketing, the soundtrack, reviews/critics, the writers, read the book, trailers and controversy.