The document discusses genres in film and their conventions. It defines genre as a category of art that helps classify films into groups to indicate their content. Genres create certain moods and audiences expect certain narrative elements and story developments based on the genre. Examples are provided of common genres like comedy, horror, thriller, and romance and their typical characteristics around characters, plots, music and more. Institutions aim to appeal to audiences by sticking to genre conventions so their films are easily recognizable and understandable.