Irish Gaelic: "Go mbeannaí Dia do'n amharclann seo." [guh many deea dhun owr-klon shuh]
You say ... "God Bless This Theater" ... what exactly were you trying to ask here?
In Irish Gaelic: Moladh le Dia In Scottish Gaelic:
Go mbeannaí Dia dom chlann.
god bless
amharclann
Go mbeannaí Dia don Mhuintir Bhriain.
Go mbeannaí Dia dár Muintir Bhriain
god bless you
God bless you and your sister
Go mbeannaí Dia thú agus go gcumhdaí sé thú
Coisreacadh is Coimirce Dé ar mo mhuintir
Go dtugaidh Dia oíche mhaith dhuit [dibh, plural].