We didn’t know what those animals were.

There were bears out there!

Lionsgate

The terrifying nature of the environment, though, fueled the performances, Berry says.

Never Let Go Halle Berry

Halle Berry as June/Mama in ‘Never Let Go’.Lionsgate

We had to feel all of that to play these characters.

The woods became a character in and of itself.

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Anthony B. Jenkins, Halle Berry and Percy Daggs IV in Never Let Go

Anthony B. Jenkins as Samuel, Halle Berry as Mama, and Percy Daggs IV as Nolan in ‘Never Let Go’.Liane Hentscher

When the food runs low, Nolan begins to question if the Evil is real.

And once the ties that bind are severed, a harrowing fight for survival ensues.

But this was a chance to play a darker version of a strong mother.

Halle Berry as Momma in Never Let Go

Halle Berry as June/Mama in ‘Never Let Go’.Liane Hentscher

I thought that would be an interesting challenge.

I couldn’t put it down once I started reading, Jeter tells EW over email.

During the scariest part of the script the power went out in my house.

I was suddenly sitting completely in the dark.

That had to be a sign!

Why does she have that snake tattoo?

What do those spiders mean up her arm?

What are those cigarette burns on her back?

Something happened to Mama.

The question is what, and that’s for the audience to have a go at figure out.

We always had the feeling of working against the resistance of the rope.

We can take risks and be vulnerable.

I love working with kids because they’re all of that.

Life hasn’t taught them yet that they need to guard their hearts.

They’re just who they are.

I learned a lot from watching them.

Never Let Gois in theaters Sept. 20.