Theron appeared with Kidman, 52, and Robbie, 29, on the show to discuss the film, which centers on female Fox News personnel and their allegations of sexual harassment against Fox News founder Roger Ailes.
"This is like literally a dream come true for me right here," Theron said of Kidman and Robbie. "The whole cast, it's just an amazing group of people."
"We've kind of had this conversation quite a bit, how rare it is where you get to work with so many women. Where you get to have an experience where you get to work with people you so admire," she added.
Theron and Kidman play former Fox News personalities Megyn Kelly and Gretchen Carlson, who were among the women to accuse of Ailes of harassment in 2016. Theron said the real-life Kelly has not reached out about the film.
"Megyn is fully aware of the film and I'm really hoping that she'll see it," she said. "We want everybody to see it who's involved in the story."
Robbie portrays Kayla Pospisil, a fictional Fox News associate producer.