The document outlines several common conventions used in film posters, including an anchoring main image featuring leading characters to provide visual appeal and convey the film's style and genre. Other conventions are a tagline that summarizes the narrative, the film title to provide context, names of actors and directors to attract audience appeal based on their celebrity status, a positive critic quote to validate the film's appeal, production credits, the film's website for more information, and the release date to build anticipation. These conventions are effective tools for informing potential audiences and attracting them to the promoted film.