The theatre is very big because the amount of space you can use is good, like for example Phil planning out the theatre play from many company with a sketch of the theatre plan along with the sound effect and lighting. There also a big screen to show the background picture and screening.
There also many different room such as a forye where everyone can wait and with a TV to show advert on what going on, upper studio room to have a meeting and small performance, art gallery from children who start painting and a chalk board to write notes for little kids on place they see, the green room (break room) where you can take a break, a props room to mend some props for example a snake was use with paper rope and use for performance and a red room (changing room) to get change and a mirror hidden inside a wardrobe.
Sounds like you had a lovely time.