Your children are smart, you should include them in future decision making.

That's how I always interpreted (justified?) that scene as an adult. Eight-year-old me was smart enough to realize that the significance of a badass, six-minute fight sequence is self-evident.

I definitely read those characters as self-obsessed, too, and the purpose of the "unbroken" shot, in my mind, was meant to reflect Riggan's crumbling grasp on reality and increasing inability to differentiate between his on-stage and off-stage lives, which fuels the tragic, dramatic action of the narrative - the…