Nicole Kidman felt "deeply humiliated" filming 'Little Big Lies'.

Nicole Kidman

Nicole Kidman

The 50-year-old actress played the role of Celeste in the HBO hit series, and has said her portrayal of a woman in an abusive relationship with her husband Perry - played by Alexander Skarsgard - left her feeling "exposed and vulnerable".

She said: "I felt very exposed and vulnerable and deeply humiliated at times. I mean, I remember lying on the floor in the bathroom at the very end when we were doing the scenes in episode seven, and I was lying on the floor and I just wouldn't get up in-between takes. I was just lying there, sort of broken and crying, and I remember at one point [director] Jean-Marc [Vallee] coming over and just sort of placing a towel over me because I was just lying there in half-torn underwear and just basically on the ground with nothing on."

And although Nicole found the scenes horrific to film, she admitted the role gave her an important insight into how real-life victims could feel.

She added: "I would have flashes of images of women that have gone through this and I'm like, 'This is authentic, this is the truth and this is what I have to do, and it would just come through like that.'"

Despite having "trust" in Alexander, Nicole - who has daughters Sunday, eight, and Faith, six, with her husband Keith Urban, as well as adopted children Isabella, 24, and Connor, 22, with former spouse Tom Cruise - admits the process was "dangerous and really upsetting".

She told W magazine: "There wasn't really any rehearsal. It was more on the day we would go in and do it. Alex was so in it, and I was so in it, and there was -- talking about trust -- an enormous amount of trust there, yet at times it felt dangerous and really upsetting, and I would go home afterwards and I would feel -- I would keep on a very brave face at work and then I would go home and I didn't realise how much it had penetrated me. And it affected me in a deep way."

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