The film earned Brando a best actor Oscar nomination and Bertolucci a best director nomination.
In 2007 Schneider said she was told about the scene just moments before she was to perform it.
"They only told me about it before we had to film the scene and I was so angry," she told the Daily Mail.
"I should have called my agent or had my lawyer come to the set because you can't force someone to do something that isn't in the script, but at the time, I didn't know that."
The actress said she felt humiliated and her reaction on film was genuine.
“Marlon said to me: ‘Maria, don’t worry, it’s just a movie,’ but during the scene, even though what Marlon was doing wasn’t real, I was crying real tears," she said.
“I felt very sad because I was treated like a sex symbol — I wanted to be recognized as an actress and the whole scandal and aftermath of the film turned me a little crazy and I had a breakdown."
“I felt humiliated and to be honest, I felt a little raped, both by Marlon and by Bertolucci. After the scene, Marlon didn’t console me or apologise. Thankfully, there was just one take."
A number of Hollywood stars including Jessica Chastain, Chris Evans and Anna Kendrick have come out condemning the story as “disgusting” and “heartbreaking and outrageous”.
Schneider struggled with drug addiction and depression following the attention the film brought to her.
She died in 2011 at the age of 58.