picture of sign

It resembles Newport Classic, but that's not quite it.

Or Mark's own Blakely.

If it's an old theater, that may not be a digital font per se but there are a lot of deco fonts (all of them free) on Nick Curtis's site. You might not find an exact match but something close.

Panache Graphics' Paleface is pretty similar, except for the S. There's even a shadowed weight ("Paleface Lift").