I was there last weekend, CC'd my G26. I looked at the doors and the ticket buying area, I didn't see any anti-2A signage.
Sorry to burst everyone's bubble, but you'd be hard pressed to find any movie theater that encourages or permits you to carry in their theater after that nutjob shot up the Dark Knight showing.
All AMC are NO GUNS allowed. "allowed"
I don't get why people get bent out of shape at places like Denny's then. No gun signs up no different than the movies or the mall.