Vogue: What part of seeing the film come out are you guys most excited for?

Aubrey Plaza:You just made a huge movie.

Stella:Okay, yes, but that was recently.

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Photo: Marni Grossman/Prime

It actually coming out feels so mind-blowing to me.

And it being a real thing that people can go and watch is so exciting.

The response has been so, so, so lovely, so Im excited for it to come out.

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Maisy Stella inMy Old Ass.Photo: Marni Grossman/Prime Video © AMAZON CONTENT SERVICES LLC

Plaza:Im excited for the world to meet this one, and to see how talented she is.

[Gestures to Stella].

Theres nobody like you, and its really fun to watch.

I think people are going to be really excited about that.

It was really fast.

She was not caught up in the literal details ofyou have to look the sameor whatever.

It was more about capturing each others essence and spirit and the spirit of Elliott.

The work is so good.

We were having fun with each other.

Plaza:Thats why its in the movie.

It was her idea.

Stella:Its a real thing for me.

There wasnt too much getting into character.

I just had to call upon his spirit.

It was so fun.

The outfit really helped; like, the purple hat and little mic were my armor.

How did those come about?

Stella:There were little jokes written, but I feel like that kind of escalated in ADR.

It had to be handled in the right way.

And then in the voiceover part, Megan pitched me some weird stuff.

And I was like, All right.

It was weirdly specific but also restrained, which I think was smart.

If you could meet yourself in 20 years, what questions would you have?

Stella:You deserve that.

This conversation has been edited and condensed.