It's not the brightness I was refering too. It was the logic behind the light sources. The light fixtures are dark in the cinema and it appears to be lit from the middle of the room. I think it would be good with lights coming from the light fixtures and really long range, slightly dimmer lights in the centre for ambience.

You can see it in the other shots too. Like the dabbs of light on the stairs that don't seem to come from anywhere.