One film I believe to have excellent mise en scene is Star Wars Episode III: Revenge of the Sith. This movie being set not within our own world meant that the mise en scene in this movie had to be perfect in order for the audience to suspend their disbelief and become immersed in the world. One way they do this in this film is through the prop design. In particular I believe the design of the weapons shown throughout the movie do this, although looking futuristic and advanced beyond what is being used now they also look practical and like they would work in real life as the design is realistic.