This is a very classic movie theater
I included a file that contains instructions for how to apply the various textures to the scene.
Let me know in case you have any trouble with the models.
Use the 'screen' and ground light meshes as mesh lights to get nearly the same lighting I used in my scene. And add an area light at the projection area to make it look like there's a film projector there
Without the chairs, the whole scene has 404k polys, the full scene has 721k