Why a feature film’s genga count isn’t just runtime × episode rate

It’s tempting to estimate a feature’s total genga and douga count by multiplying a TV episode’s per-minute rate by the film’s runtime, but the two rarely move in step. A theatrical feature typically commits more of its runtime to cuts that would be considered “expensive” by TV standards — sustained camera moves, larger-scale action, denser backgrounds — because a cinema screening forgives far less than a home broadcast does.

The counter-pressure is schedule: a film has a fixed release date like a TV series does, but without a season’s worth of episodes to average a hard week against. That tension is most of why feature production schedules run longer, department for department, than the equivalent runtime of episodic TV.