Sure, some long plays have intermissions, and backs hurt. I'll grant that. But a play is built around a live stage reset; film isn't. A film's rhythm is set in the edit, and an intermission is an arbitrary cut forced by a clock, not the story. Where's the cutoff? 149 minutes fine, 151 not? That's not art, it's a rule. If someone can't sit still, they can stream and pause all they want. The theater's whole product is uninterrupted immersion. Don't dumb movies down for the restless.