Its been incredible, Gerwig said of the response the film has received from audiences.

I was invited to go on this journey.

Margot Robbie came to me and said do you want to write this.

Greta Gerwig

LONDON, ENGLAND - OCTOBER 08: Greta Gerwig during the Greta Gerwig Screen Talk at the 67th BFI London Film Festival at the BFI Southbank on October 08, 2023 in London, England. (Photo by Joe Maher/Getty Images for BFI)

She was the producer and star with David Heyman and Tom Ackerley.

They put together this incredible team of people, and the process of making it was such a joy.

It was the most thrilling thing.

WGA West building in Hollywood

You get into a particular zone of a writer or director.

I like being in the hands of the director and giving them what they want, she said.

Thats why Ive never acted in my films and never want to.

I like giving over.

I would deny the pleasure of both things if I did that.

Gerwig has writing credits on twelve features and has scripted aSnow Whitereboot for Disney.

Writing is the thing I most enjoy having done but feels painful when Im doing it.

Writing is painful to me in a deep way, she said of the process.

Youre by yourself and its quiet.

Every voice youve ever had in your head that says youre not very good is loud.

Gerwig didnt share any details about the project.

London Film Festival runs until Oct 15.