The monsters have incredible hearingbut can they distinguish human heartbeats?

Notably, they have superhuman hearingthe moment anyone makes a sound, they are toast.

There actually was a scene at one point that we were going to play with that.

Joseph Quinn and monster in A Quiet Place: Day One

But, no, I think they can.

I think if you’re scared enough and your heart is pounding enough, they can hear it.

I think it’s just that there’s a lot of relative sound going on.

A Quiet Place: Day One monster scene with Joseph Quinn and Lupita Nyong’o

The human heartbeat is audible but rarely louder than whatever is happening environmentally.

So if the sound that you’re making is louder than the environment, then you’re screwed.

But occasionally, you get scared enough that your heartbeat might be loud enough for that."

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But you also don’t want people to feel like you’re cheating them.

After the first two movies, it was revealed that these monsters have one key weakness, feedback.

The same logic might be applied to helicopters flying overhead.

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I mean, I have sort of my own theories on that.

And I’ve talked a little bit with John about it.

There are some theories around that.

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And I, yeah, I have my thoughts on it.

A Quiet Place: Part IIalso set some high expectations for what day one of this apocalypse looked like.

And that was kind of my in; I was just always falling back on character."

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So rarely on set did we show up, and someone was like, they can’t do that.

That’s way too loud.

But we always talked about it, like, how would you move?

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How would you interact with this stuff?

It was kind of always at the front of mind."

The first thing I sort of found with Sam’s character that was my initial in.

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And then the cat just made a lot of sense.

They’re kind of sly and silent, I don’t think a dog would do great.

And then it was just sort of exploring what that could mean to the movie."

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