Jennifer Lawrence has opened up about a "humiliating" and "degrading" moment she experienced as a young actress when a female producer instructed her to take part in a naked line-up during an audition.

The 27-year-old came forward with the experience in a speech at Elle's Women In Hollywood Event on Monday night, where she went into detail for the first time about the incident.

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Taking to the lectern to comment on her mistreatment in the industry, Jen began: "When I was much younger and starting out, I was told by producers of a film to lose 15 pounds in two weeks,”

“One girl before me had already been fired for not losing the weight fast enough,” she added. “During this time a female producer had me do a nude lineup with about five women who were much, much, thinner than me. We all stood side by side with only tape on covering our privates.”

Jennifer went on to describe the moment as a "degrading and humiliating" experience, made worse by the fact the producer suggested she use thenaked photos of herself as "inspiration" to lose weight.

After raising her concerns to another producer on the movie, Jennifer said that his reply was less than helpful: "He said he didn't know why everyone thought I was so fat, he thought I was 'perfectly f--kable."

While it's easy for outsiders looking in on the situation to say that she should have walked out the door, Jen pointed out that she feared her career was on the line.

“I’m still learning that I don’t have to smile when a man makes me uncomfortable,” she said. “Every human being should have the power to be treated with respect because they’re human.”

This all comes after Hollywood mogul Harvey Weinstein has been accused of multiple counts of sexual assault.

Jennifer, who worked with Weinstein on Silver Linings Playbook, told People Magazine that she was "deeply disturbed" to hear the news, but hadn't experienced any harassment herself.

“I worked with Harvey five years ago and I did not experience any form of harassment personally, nor did I know about any of these allegations. This kind of abuse is inexcusable and absolutely upsetting.”

She continued: “My heart goes out to all of the women affected by these gross actions. And I want to thank them for their bravery to come forward.”