In the middle of this space is the set or a group of sets. Above it is a grid where large lights are hung. A sound cart with tape recorder and perhaps a few chairs line the perimeter. On a shooting day, the set is always crowded with people performing their various tasks-gaffers, grips, boom operator, property technician, set designer, makeup artist, camera crew, production assistants. All are necessary for the scene that is to be shot.