$11,000 per theater in strictly midtown locales is no way near being sold out. Some of these theaters can take $40, or $50,000. And "staying the same" as you go from Thursday to Friday is pretty disasterous. If you're going to compare Thursday to Friday to sense "selling out," I suggest you also consider LAST Friday, when the take was four times higher.
Friday's take was far from the highest per screen daily take. Return of the Sith opened up at $13,666 at over fifty times more theaters, including smaller rural and small-town theaters.
I know it's not Return of the Sith, but right now it is not the bomb you are making it out to be. As of today it's doing very well financially.