One of my favourite and most influential designers is Olly Moss. A lot of his work takes well known video games, TV shows, and movies, and will recreate them through his eyes. He does a lot of movie poster recreations as well as game covers. He has a very simple and flat style that engages the viewer. These are some posters that are my favourites. His gallery of artwork can be found here: http://ollymoss.com/galleries/posters.