US actress Annabella Sciorra has testified in Harvey Weinstein's trial that the film producer pinioned and raped her at her home 25 years ago.
Ms Sciorra, best known for her role in The Sopranos, said Mr Weinstein forced himself into her apartment and attacked her.
"I was trying to get him off me," Ms Sciorra said to the New York jury. "I was punching him, kicking him."
The 67-year-old denies all charges, which include rape and sexual assault.
If convicted, he could face life behind bars.
WARNING: This story contains details some readers may find upsetting.
The incident that Ms Sciorra alleges would have happened too long ago to be pursued under New York law.
But prosecutors intend to use her testimony to support their argument that the accused is a sexual predator.
To do so, they must prove Mr Weinstein committed a serious sexual offence against at least two people.
Mr Weinstein is charged with raping one woman, Jessica Mann, in a hotel room in the New York borough in 2013, and performing a forcible sex act on a second woman, Mimi Haleyi, in 2006.
His defence team said his actions were consensual, including one "loving" relationship.
According to her emotional testimony, Ms Sciorra had dinner with Mr Weinstein in the winter of 1993-94. The Hollywood mogul then offered to drive the actress back to her Manhattan apartment.
Soon after Mr Weinstein dropped her off, the actress heard a knock at her door. The producer shoved his way into her apartment, she said, and took her to a bedroom where he forced her on to a bed and sexually assaulted her.
Mr Weinstein ignored her attempts to fight him off, Ms Sciorra testified on Thursday, fighting back tears.
"He got on top of me and he raped me," she said. "He had intercourse with me and I was trying to fight him, but I couldn't fight anymore because he had my hands locked."
She said he then forcibly performed oral sex on her, telling her: "This is for you."
"It was just so disgusting that my body started to shake in a way that was very unusual," she said. "It was like a seizure or something."
Ms Sciorra said she confronted Mr Weinstein at a dinner weeks later. His response was "menacing", she said. The producer allegedly leaned into her and said: "This remains between you and I."
"It was threatening and I was afraid," the actress testified.
Mr Weinstein continued to harass her, Ms Sciorra said. At the 1997 Cannes Film Festival, Ms Sciorra said she opened her hotel room door to find Mr Weinstein standing in front of her, holding a bottle of baby oil and a movie tape.
She ran back inside her room and Mr Weinstein eventually left.
"I got very scared," she said.