Wikipedia
A projection booth ( US English), projection box ( British English) or Bio box ( Australian English) is a room or enclosure for the machinery required for the display of movies on a reflective screen, located high on the back wall of the presentation space. It is common in a movie theater.
Usage examples of "projection booth".
In a projection booth, Tyler did changeovers if the theater was old enough.
Although the theater had no windows, there was still some light: the red glow of EXIT signs, light seeping in under the doors, a large illuminated analog clock on the wall above the doors, red LEDs from smoke detectors, and lights from a control panel or some such coming from the five little windows of the projection booth above the entrance.
He was in the snack-bar, A car ripped right through one of the walls, ploughed through the counter, smashed the popcorn machine, and got him as he was trying to unlock the door to the projection booth.
It was an indicator light on the videotape player, a large black box dangling from a thick wire where the projection booth had been.
In a corner of the projection booth, volume low, stood a TV flickering with images that to Deucalion had no more narrative content than did the flames in a fireplace.
In the flickering light from the projection booth, she could see that Charles Eyton had not slumped in his seat.
They drove by the old Sunnydale Twin Drive-In, long since closed down, and checked out the big cement bunker that had once doubled as concession stand and projection booth.
She goes to the screening room's projection booth, rummages in its film library, and finds an unmarked canister that she stuck behind the others two or three years ago.