This video [3:12] provides an overview of how lights are used in film production. let's think about the various roles that light can play when lighting a scene. In photography and film-making we define a light by how it is being used. And since those are common terms in those industries, it's useful to know them. To see the different ways lights are used, let's break down the shot and look at the lights one at a time. Key, fill, bounce, rim, and kick.