Keith Urban is fully aware that he married a creative person, but even he has had to adjust to Nicole Kidman's new role on the limited television series Big Little Lies. The project has the Oscar-winning actress playing Celeste, a woman who finds herself in a violent relationship with her husband, Perry (Alexander Skarsgård).

In an interview with Vogue, Kidman admits that she didn't realize how much of an affect playing the character had on her — or her husband.

"I would go home at night sometimes and be in a lot of pain, and I had to take things like Advil because I was being thrown around physically," she admits. "I was really bruised. At one point Keith was like, 'I’m going to take a photo of your back because it’s covered in deep, massive bruises.' He was devastated seeing it, but then he would say, 'But I have an artist wife!'"

Kidman says that Urban knows that's how she works — she deeply gets into every role she plays. Often, she confesses, she didn't even notice her bruises.

"I loved playing her, because she was a beautifully written character with a director that totally wanted to go there, and to have an actor like Alex to play opposite off of was amazing," she shares. "That’s what we all seek as actors. But at the same time, when I walked away from it, I remember thinking that was the deepest I’ve gone in terms of finding and losing things."

Big Little Lies airs on HBO and is based on the same-titled best-selling book by Liane Moriarty. Kidman produces the series alongside longtime friend and actress Reese Witherspoon.

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