what kind of lighting do mystery films use?
<answer> mystery films use Key Lighting and Back lighting. <context> Back lighting is when the light source comes from behind the subject. This gives a new dimension within the background and has the ability to create silhouettes. For example, within the 'Se7en' trailer, the use of back lighting is used to create a shadow. This is effective as it creates mystery around who the figure is, emphasising the mystery/thriller genre of the film. Low Key Lighting is created by using the key and back lights. Used together, they produce a sharp contrast between light and dark areas on screen.