"I had many imaginary conversations with Meryl about working together," she says about her August: Osage County costar in Marie Claire's December issue.
"When a person goes from being on a pedestal in your mind, to even cooler, better and more fabulous up close, you get to understand them a little more intimately."
Marie Claire / Cedric Buchet
"I had interviewed Hillary Clinton [for OWN], who has become a personal hero to me – who she is and her convictions as a woman and mother and humanitarian," she says.
As for being a mother herself, Roberts says she's lucky to spend so much time caring for her husband of 11 years, Danny Moder, and their three kids, twins Hazel and Finn, 8, and Henry, 6.
"It's my privilege and honor to cook three meals a day for my family, and it's a luxury on a level that I didn't even realize, because it can be relentless for me on some days," she says. "You have pride in how you take care of your family."
To take care of herself, Roberts says she avoids looking up her name on Google.
"I have too much potential for collapse. There's an anonymity that makes people feel safe to participate in hatefulness," she says. "I like a good old-fashioned fistfight if people are pissed off at each other. I just feel like if you're really mad and want to have a fight, then put your dukes up."