The film poster shown here is Batman: The Dark Knight and other one below is The Hunger Games: Mockingjay Part 1. One convention of the two film posters is that the main character is displayed in the the middle of the page, this is to show the audience who the main character will be in the film and to understand some sort of narrative. They also do this to portray that the character has dominance to whom is normally the protagonist in the film. Another similar item is the use of fire on a dark low key lighting background, the two posters do this so the viewer is immediately drawn to the fire which connotes destruction, anger and passion. This is also done because of the genre of the film which is Action and Adventure.
An additional feature on many film posters including these two is that they are normally very minimalist and don't offer a lot on the poster. Some of the most common features on a film poster are a slogan, the title, main image of a character, actors and actresses names
cast and crew information (billing block), release date and reviews. Commonly the information is at the bottom of the poster so the audience are attracted to the main image which is the main focus. As seen on both of these posters the title, billing block and release date are at the bottom of the page. The slogan off the Batman poster "Welcome to a world without rules" engages the reader straight away as it connotes danger therefore making the audience think about what could potentially happen in the film then leading to them wanting to watch it.