ΜΟΛΩΝ ΛΑΒΕ, we are the III%, CIP2, and some other catchphrase meant to aggravate progreSSives who are hell bent on taking rights away...
I think it more depends on what the event is. I went to a rock concert there and they were doing pat downs and made me take off the chain on my wallet. A friend flew in to see Flogging Molly and there was no pat down, etc. and I joked I could've brought in a bazooka. But I had the same 2 experiences at the Filmore.
I believe it is owned my the city of Denver. No permanent metal detectors. CCW ok. Please correct me if I am wrong.