The Oscar winner, who stars in the new erotic thriller film 'Babygirl', spoke to PEOPLE for One Last Thing

The actress also repped her new film 'Babygirl' in a custom tee

The actress' mother Janelle Ann Kidman died in September at the age of 84

PEOPLE's critic, Tom Gliatto, selects his top 10 shows from 2024

The 31-year-old shared a selfie of herself at an art museum

Kidman shares daughters Faith and Sunday Rose, 16, with husband Keith Urban

Sunday, 16, walked her first runway show for Miu Miu on Oct. 1

The 'Babygirl' actress said her mother "had an enormous amount of wisdom and humor"

Nicole Kidman's new movie 'Babygirl' is in theaters Dec. 25

At the Gotham Awards, Timothée Chalamet and James Mangold received this year’s Visionary Tribute honor for 'A Complete Unknown'

Nicole Kidman and Harris Dickinson star in the erotic drama 'Babygirl,' in theaters Dec. 25

All eyes were on the actress, who was was nominated for outstanding lead performance for 'Babygirl', in a look straight from the archives

The former couple also share daughter Becca, 31

The actress stepped out in red from head to toe for the GQ Men of the Year Awards on Tuesday

"He’s like, 'No, I still have total rights over babygirl!'" she said

Kidman also revealed that Bullock was part of the reason why she said yes to doing the film in the first place, noting that she wanted "to be her sister"