Mise en scene is the construct of the film to the eye on the set of a film or theatrically.

This includes:
Props
Costume
Lighting
Actors
Location

Mise en scene is a way of portraying a storyline and presenting the film. For example mise en scene is used within harry potter. We are introduced to the idea of wizards and witches through their wands, robes, dark lighting and an open eary location. These factors play a huge role in the final product of our film. Slight changes within mise en scene can make a dramatic change to the storyline itself.
Mise en scene is also a way of portraying the genre, for example when a scene of a dark alley way with one single man wearing a black hooded jumper would straight away relate to a thriller or horror film.

It can also represent many factors of people such as age, gender, disability, ethnicity etc. This is an easy way to identify these characters openly.