Trailer as a Form of Advertisement
Advertisement is a form of communication with the viewing public. The purpose of which is to give information on what they can expect. Aside from posters or billboards, personal appearances of the casts of a certain movie to various television programs, print ads, among others, movie trailers are another form or way to advertise a movie. Advertising agencies sometimes do this for a certain movie or film company but most often than not, movie outfits do these themselves, meaning they already have their own advertising team to promote the movie. Movie trailers are most commonly seen in-between regular showing of movies or television programs.