In her latest role, playing Queen Atlanna in the DC film, Aquaman, Nicole proved she takes her craft very seriously and maybe also the phrase, "more pain, more gain."
"My opening shot in the film is being washed up on a rock, and I got to lie there with massive waves washing over me," she told an excited audience at the Aquaman Q&A.
"And I kept thinking, 'Come on, James! Give it to me! The bigger the better! This is why I'm doing this movie," she continued during the San Diego Comic-Con in California this weekend.
Comic-Con is the world's largest comic convention, where all things nerdy and geeky are celebrated with great gusto.
This was the actresses first time at Comic-Con and she loved it, but the Big Little Lies start couldn't stay as long as she would have liked.
"I have to be at work tomorrow. I have to do rehearsal and then I have to be back on the set of Big Little Lies on Monday," she explained when asked how she was enjoying herself so far.
"And being the professional that I am, I [have] to leave this afternoon so that I can prep."
On that note, Nicole adorably shared she bows down to her BLL's co-star Meryl Streep, who she says is more than a queen, she is an empress.
"I bow down. She's the empress," the actress said. "We go out and we love eating Italian food in Monterey."
We can't wait for all these exciting Kidman projects to hit our screens.