Stage / Screen
In a theatre or auditorium, the stage is the designated space for the performance. It is usually placed at one end of the hall; with the audience arranged around it in a manner that enables maximum number of seats to get a good view.
The stage serves as a space for actors or performers and a focal point (the screen in cinema theaters) for the members of the audience.
As an architectural feature, the stage usually is a raised platform. In some cases, these may be temporary or adjustable but in theaters and other buildings devoted to such productions, the stage is often a permanent feature. There are several types of stages that vary as to the usage and the relation of the audience to them.