They also share how they tapped into those deeper emotions and brought themselves to the characters.

Our audience might not know aboutHal & Harperjust yet, so can you give a brief synopsis?

Their dad is having a baby with his long-term girlfriend, and he’s selling the childhood house.

Lili Reinhart and Cooper Raiff at Sundance 2025 for Hal & Harper

Image by Photagonist

They’re going back in time a lot to deal with the pain that childhood house holds.

That’s my best logline.

Then I was like, Where did that idea come from?

Harper (Lili Reinheart) and Hal (Cooper Raiff) hug their father played by Mark Ruffalo in Hal & Harper

Image via Sundance Institute

And I realized I should start digging into my childhood.

RAIFF: It was 300 pages.

I think that was why it was hard to get people to read it.

The cast of Hal & Harper pose at Sundance 2025

Image by Photagonist

We got people to read it because I think we lied.

And they eventually all read it, and it was all fine.

But it’s hard to get someone to read 300 pages.

Lili Reinhart discussing Hal & Harper at Sundance 2025

Image by Photagonist

It’s hard to make independent TV.

RAIFF: It is.

I love the fact that we see more festivals like Sundance embracing independent television now.

Alyah Channelle Scott discusing Hal & Harper at Sundance 2025

Image by Photagonist

You would say something like…

RAIFF: Drop it down.

REINHART: It was a good reminder.

You would say, Feel it in your body.

Christopher Meyer discussing Hal & Harper at Sundance 2025

Image by Photagonist

RAIFF: We were shooting, like, 10 pages a day.

That was just a really great experience.

And you’ll look over, and Cooper’s like, That wasn’t it, right?

Lili Reinhart poses at Sundance 2025 for Hal & Harper

Image by Photagonist

And you’re like, Yeah, okay.

Thank you so much.

I feel so validated, and I don’t feel rushed.

Hal (Cooper Raiff) and Harper (Lili Reinhart) talking and laughing with their dad played by Mark Ruffalo

Image via Sundance Institute

I feel like I can be honest with you about, like, I didnt buy that.

And you’re like, Okay, great.

We don’t have to do that.

Bruce Banner Ruffalo

It was like the second day I got there, and you were like, What do you need?

Just tell me what it is, and it’ll happen.

CHRIS MEYER: Like she said, I feel Coop just made it so comfortable for me, specifically.

Cooper Raiff, Addison Timlin and Havana Rose Liu discussing Hal & Harper at Sundance 2025

Image by Photagonist

To start to dig into characters, Lili, Im going to come your way first.

Did you have that with Harper, and if so, when?

REINHART: That’s such a great question.

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It created going into it like a brother-sister relationship.

And hes like, No, I trust you.

But I think just the comfortability.

Cast Placeholder Image

I felt like I could walk on set and just be her.

But also, wardrobe helps so much to me.

RAIFF: Do you remember your first scene?

You were third-grade Harper.

Weve shot seven days!

But I remember your first scene, and my favorite thing of the show is Lili playing third-grade Harper.

it’s possible for you to’t even describe it.

But that was the first scene, and I just burst into tears and was just so excited.

I always feel like a jerk asking actors, How did you do that?

It’s a fine line there, and I think you both do it exceptionally well.

RAIFF: Lili just tapped into something.

Especially with third-grade Harper, not a single note was given.

All of their performances, it’s like, How can we get into that tapped-in place?

But no one was ever in their head with a performance.

It wasn’t like, Am I doing the seven-year-old right or the nine-year-old right?

It was just like, This is what the story and the art needs.

That’s what it felt like.

The production has received permission from SAG-AFTRA to continue despite the strikes.

SCOTT: We kind of talked about this when I auditioned, and we had a Zoom.

And then it was like, No, we know why.

Our friendship in the show reflected on my friendships in real life.

It helped me realize a lot of things in my actual friendships.

You know what Im saying?

LIU: Piggybacking on that idea, I feel like Cooper brought stuff out of the character.

So, it felt very multifold in that way.

REINHART: Whatever you want!

RAIFF: We’re just saying whatever you want.

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