We rented out the Century Square Cinema in West Mifflin for my sons birthday in 2021. They were doing a lot of rentals like that then, we had a private screening for just 10.

I called again about doing the same in 2022 and they weren’t doing the private showing anymore, but they were still doing birthday parties where you get the private room beside the theater for pizza/cake and then tickets to the showing, but open to the public.

Hope that info helps.