Gwyneth Paltrow tells Howard Stern her ex Brad Pitt threatened to 'kill' Harvey Weinstein

Show Caption Hide Caption Harvey Weinstein put his hand up my skirt “He was very clear. He had helped other actresses get major roles, and he would like to help me. Then he put his hand up my skirt and pulled my panties over.”

Gwyneth Paltrow says Brad Pitt threatened to end film producer Harvey Weinstein after an alleged incident of harassment in a hotel room.

The actress who resumed her role as Pepper Potts for last month's Avengers: Infinity War, detailed her then-boyfriend's reaction on The Howard Stern Show Wednesday.

“We had one instance in a hotel room, where he made a pass at me,” Paltrow told Stern.

The 45-year-old first went public with her accusation in The New York Times last October. Weinstein had hired Paltrow, then 22, as the lead in the 1996 screen-adaptation of Jane Austen's novel Emma. Before shooting began, he summoned her to his suite at the Peninsula Beverly Hills hotel for a work meeting which Paltrow says ended with Weinstein placing his hands on her and suggesting they head to the bedroom for massages.

“It was out of the blue,” Paltrow said Wednesday, adding she was “blindsided.”

More: Actress who accused Harvey Weinstein starts crowdfunding campaign to finish film

More: In Cannes, Asia Argento blasts Weinstein, warns other predators: 'We know who you are'

The 94 percent: How common is sexual misconduct in Hollywood? 94% of the 843 women surveyed by USA TODAY who work in the entertainment industry say they've experienced some form of sexual harassment or assault.

Paltrow said she told Pitt of the alleged encounter "right away," leading the War Machine actor to confront Weinstein at a Hamlet Broadway opening. “It was like the equivalent of throwing him against the wall,” she remembered of Pitt’s stance.

“(Brad) said, ‘If you ever make her feel uncomfortable again, I’ll kill you.’ Or something like that," she said.

"It was so fantastic because what he did was, he leveraged his fame and power to protect me at a time when I didn’t have fame or power yet,” Paltrow continued.

Weinstein stands accused by more than 80 women of sexual harassment or assault. The producer has refuted the claims. "Any allegations of non-consensual sex are unequivocally denied by Mr. Weinstein," his spokeswoman Holly Baird told USA TODAY via statement.

Contributing: Andrea Mandell

More: Harvey Weinstein has been targeted by federal prosecutors, lawyer says

More: How common is sexual misconduct in Hollywood?