Glossary

Diegesis: The diegesis includes objects, events, spaces and the characters that surround them, including things, actions, and attitudes not necessarily presented in the film but inferred by the audience. The audience constructs a diegetic world from the material that is presented within a narrative film.

Editing: The joining together of clips of film into a single shot. The cut is a simple edit but there are many other ways to transition one shot to another.

Focus: It refers to the degree to which light rays coming from any part of an object pass through the lens and reconverge at the same point on the frame. This creates sharp outlines and distinct texture that match the original.

Mise En Scene: All the things that are put into a frame; the setting, the decor, the lighting, the costumes, the performance etc. 

Three Point Lighting: The standard lighting scheme for classical narrative cinema. In order to model an actor's face with a sense of depth, light from three directions is used just like in the diagram below.

The back light picks out the subject from its background, a bright key light highlights the object and the fill light from the opposite side helps make sure that the key light only casts faint shadows.

Shot Reverse Shot: Two or more shots edited together that alternate characters, typically in a conversation situation. In continuity editing. Over the shoulder framing are common in shot reverse shot editing.