The actress, 57, was just 11 years old when she played a prostitute in the 1978 film Pretty Baby.
In it, she was forced to kiss co-star Keith Carradine, then 27. Her mother, Teri Shields, reportedly stood and watched the scene happen, while Carradine assured the child star it was all ‘make-believe’.
‘I don’t know why she thought it was all right. I don’t know,’ she said in a new interview.
The star’s mother died in 2012 at age 79 following a long illness related to dementia.
Brooke and the film will be the subject of a documentary, Brooke Shields: Pretty Baby, that sees the actor and model ‘become a woman who discovers her power after being a sexualised young girl’, according to a synopsis.
The documentary shows a scene, per The Daily Mail, in which Brooke’s own daughter, Rowan, 19, describes the actress’ childhood career as ‘child pornography’.
‘It’s child pornography! Would you have let us [do that] at the age of 11?’ she asks her mum, who tearfully says ‘no’.
‘That was hard for me, to not justify my mum to them, but when they asked, I thought, “Oh God, I have to admit this”. But I don’t know why she thought it was all right,’ Brooke told The Times.
In the documentary, Brooke explains to her two daughters, including Grier, 16, that she would never let them watch Pretty Baby.
When Brooke was just 10, she was allowed to pose nude for Playboy, while at 14, she became the youngest model to grace the cover of Vogue.
The trailer for Pretty Baby: Brooke Shields, begins with Brooke as a teenager being asked what she made of all the ‘fuss being made over’ her as she sat next to her mum.
In the footage from an old interview, she smiles and answers: ‘I think it’s kind of fun.’
The male journalist then tells her that she really is an ‘exquisite-looking young lady’ and a ‘pretty girl’.
Talking about Pretty Baby, Brooke admits she is ‘amazed’ that she ‘survived any of it’.
‘I found my confidence and thought, “I can have my own opinion”, she goes on to admit after struggling through her childhood to “find her voice”.
Brooke Shields: Pretty Baby premieres on April 3 on Hulu and will be available to stream in the UK on Disney Plus.
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