"It's very intimate between these women, they slap each other, they kiss each other, they make love to each other, they argue with each other, they flatter, it's very... women getting to do just about everything there is to do," said Weisz, who plays Stone's cousin, as they fight for the love and affection of England's Queen Anne (Olivia Colman).
It's not just the women who have on-screen moments. Stone's character also has an intense scene with Taylor Swift's boyfriend, Joe Alwyn.
"Your wedding night with Joe Alwyn was kind of pretty out there as well," Weisz, 48, noted.
"It was pretty depressing," Stone confirmed.
"I won't say what happened there on Entertainment Tonight. I don't know what rating... it's not PG," Weisz said.
"No, it's not," Stone joked, adding, "it's a little racy."
Watch the video below for more of ET's interview with the pair: