I have attached photos of the room and the house plan that had come along with it.
The dimensions of the room are 5.1 x 4.1m
As you can see from the photos – the kids bedrooms are unfortunately surrounding the theatre room. The room is carpeted. Sound does go through the single brick wall quite easily as well as underneath/through the double doors.
The light isn't an issue due to us only watching at night.
I am planning to have a 120 inch projector screen with the epson 9400 (happy to take suggestions, budget for projector of ~5-6k). Will have a combination of in-ceiling speakers, 2 towers at the front along with central speaker, and couple of rears.
How do I make this room for theatre and child friendly (in terms of noise) or is it too late or destructive to do so.