Cynthia McFadden said Walters was "dogged by Diane's very existence," and revealed in a new film that Walters "put a lot of pressure on Kate to unbook" a Sawyer interview.

I think with someone like Barbara, people know that she was a difficult person and a complicated person, and it would be ridiculous to make something about her that didn’t include that.”

Jackie Jesko also talks to THR about her and the producers' "careful" approach to discussing motherhood and what surprised her most about Walters' life during her research.