A movie poster is an artifice for promoting that film and is used as a way to promote and draw people's attention so that they decide to watch the film. For this reason, movie posters must contain factors that attract the audience's attention such as a photo of the main characters, images related to the script and some sentence related to the theme that the film addresses.
A movie poster will never have pictures of the main promoters, directors and members of the audience, because that is not attractive to the public.
