One of my favourite moments in Shin Godzilla (2016).
With a U.S. aerial assault on Godzilla imminent, citizens are ordered to seek shelter underground. A rushed frenzy ensues, with people pushing and shoving to make it to “safety”. Despite the manic nature of the operation, it seems to be going well - that is until the lights go out, and true panic sets it. It’s an interesting, quiet moment, as the panicked populace are really no more safe with the lights on than they are in the dark - but right there in that moment, in that situation, the lights going off would be terrifying.