Having seen this show from the last row of the Armory in April, I caught the NT Live screening at a sold out cinema on Manhattan's east side last night. Curiously enough, it somehow felt more epic in scale, more over powering, from the top of the Armory than it did on a large screen. Apart from that, my reaction to the show's substance is largely unchanged. The first act is spectacular, the second act is very good...the third act falls apart. The last 30 minutes are weak.
I don't think the show can, or should, contemplate an extended Broadway run. But what I would love to see is a staged translation of the complete Italian original.