The Dark Knight poster concentrates mainly on the long-shot of the Joker, on a slight tilt. The tilt of the long shot is very effective as the joker looks off balance and therefore unstable, this emphasises the chaos in the poster, eventhough there is no one else in the picture.
The colours which are provided in the picture creates an eerie atmosphere. The cloudy/misty surroundings in the background produces an evil ambience.
The title is in a small, bold font at the bottom of the page with the batman logo behind it. The fact that the title is in a smaller font provides more attention to the main image.
The list of actors are at the top of the page in white, the same colour as the title, in contrast to the image which is darker colours. This shows the audience the actors in the film as there is only one actor on the poster.