Do you have to pre-order your ticket or can you just walk up and purchase at window? Would like to see Mama Mia at 6:40 but uncertain as to tonight's showing 8/8 or tomorrow night 8/9 or if I'll make it at all.

You can buy tickets at the window. They'll show you a screen and ask you to choose seats (seat assignments), but that's becoming more common these days.

You can walk up and purchase. It is now located at the top of the escalator.

Either. I often buy tix from the window.

You can walk up and purchase.

You should be able to buy tickets at the door unless it is sold out. I know I got tickets through the machine last time I was there. I believe they did do away with the box office downstairs though, so you'll have to go upstairs to get the tickets.

Yes, you can walk up and purchase.