Paltrow, 45, first opened up about her troubling encounter with Weinstein in an interview with The New York Times last October.
According to the actress, she was summoned to his hotel room for a meeting after being hired to star in the adaptation of Jane Austen's Emma. During the meeting, she claimed he suggested they head to the bedroom for a massage.
"I was a kid, I was signed up, I was petrified," Paltrow said, revealing that she'd told then-boyfriend Brad Pitt about what happened, and that he'd warned Weinstein never to touch her again.
The Times also revealed that Weinstein told women he'd slept with Paltrow in a bid to coerce them into having sex with him, citing multiple sources.
One woman, who accused Weinstein of sexually assaulting her in 2004, claimed that he kept a framed photo of Paltrow in his bedroom. Another who alleged that Weinstein sexually harassed her in 2000 said that Weinstein told her he'd been intimate with Paltrow and other stars.
"He's not the first person to lie about sleeping with someone," Paltrow said. "But he used the lie as an assault weapon."