Nicole Kidman isn't sure she has the "bravery" to watch 'Babygirl' at the Venice Film Festival.

Nicole Kidman stars in the new erotic thriller

Nicole Kidman stars in the new erotic thriller

The 57-year-old actress portrays a high-ranking CEO in the new erotic thriller film, but Nicole feels hesitant about watching the movie at the premiere in Venice.

The Oscar-winning actress - who stars alongside Harris Dickinson, Sophie Wilde and Antonio Banderas in the film - told Vanity Fair magazine: "There's something in me going: 'Okay, this was made for the big screen and to be seen with people. I'm not sure I have that much bravery.'"

Nicole acknowledged that 'Babygirl' is the most "exposing" film of her career.

She shared: "I've made some films that are pretty exposing, but not like this."

Nicole feels particularly anxious about her sex scenes.

The Hollywood star explained: "It's like, golly, I'm doing this, and it's actually now going to be seen by the world. That's a very weird feeling."

Earlier this year, Nicole played Zac Efron's on-screen love interest in 'A Family Affair', and the actress previously admitted that she considered the script to be a breath of fresh air.

Nicole also relished the experience of working with Zac, 36, on the movie.

Nicole - who is married to music star Keith Urban - told PEOPLE: "We’ve had it from way back with older men and younger women, that’s just always been the norm - it’s okay, it’s completely acceptable. The problem is we’ve not had the equivalent from all different viewpoints, with women telling the stories. And we need game men.

"[Zac] came in and makes the film because he was like, 'I’m here to have fun, to play, and to very much be a part of this and be there for you.'"