Movie Poster Ideas: Black background

For the task of creating a movie poster, i am looking at representing the film's dark tone on the poster, with a black background likely to be used, as this suits the tone of the film well. The black background also works to serve other text on the poster and the main image, which will pull more of the viewers attention than t would do with a distracting background. Examples of this being used in movie posters include:
The Silence of the Lambs

Scream 4