The 70-year-old actress denied this week on Twitter that she and Roberts "hated each other" on the set of the 1998 movie.
"If you make a movie with a male star, everyone assumes you're [expletive]. If it's a female star, everyone assumes you're fighting," Sarandon told the publication at the time.
"Actually, Susan and I were kinda hoping that people would say we were [expletive]," Roberts wryly added. "Now that's delicious cocktail-party fodder. But this? Boring."
"The #1 question I get in interviews is whether Jessica & I get along. Jess & I not only got along great during filming, we're now dating," she jokingly tweeted.
"...I mean, staying in touch. She's one of the reasons I agreed to do the series. Working with brilliant actors only makes you better. #FeudFX," the star wrote.
Feud: Bette and Joan airs Sundays on FX.