Game of Thrones' Lena Headey is the 45th woman to come forward with allegations of sexual harassment and misconduct against producer Harvey Weinstein.

Headey, who plays the role of Cersei Lannister in the popular HBO drama, recounted two of her horrifying encounters with the Hollywood mogul in a series of tweets she posted on Tuesday, Oct. 17.

The 44-year-old actress started off by saying that she was first introduced to Weinstein, 65, at the Venice Film Festival during a screening of the film The Brothers Grimm, in which she co-starred alongside Matt Damon and the late Heath Ledger.

Weinstein's Miramax studio was handling the distribution of the 2005 film. In her post, Headey also accused the film's director of bullying her during the filming of the movie, but did not reveal any further details.

"At one point Harvey asked me to take a walk down to the water, I walked down with him and he stopped and made some suggestive comment, a gesture," she tweeted. The actress noted that although Weinstein's advances had taken her by surprise, she laughed it off as a joke.

In her following tweet, Headey said her next encounter with Weinstein took place years later in Los Angeles. She wrote that after she laughed it off the last time by saying that it would never happen in a million years, she always believed that he would not try anything else with her again.

Headey said Weinstein invited her over for a breakfast meeting, during which they spoke about films and filmmaking. At one point during the conversation, the producer allegedly started asking her questions about her love life so she changed the topic of conversation to something less personal.

The actress later revealed that the producer invited her up to his room under the pretext of handing her a script, and the two of them entered the lift. According to Headey, as soon as they walked into the lift, she felt something was wrong and on their way up, she made it very clear to Weinstein that she was not interested in anything other than work and did not get into the elevator with him for any other reason.

Headey said Weinstein became furious after hearing what she had just said. The duo walked out of the lift and started walking toward the producer's room, with his hand on her back. The producer marched the actress forward without uttering a single word.

"I felt completely powerless, he tried his key card and it didn't work, then he got really angry," she said.

Headey claims the producer then walked her back to the elevator, through to the hotel's valet, grabbing the back of her arm tightly throughout and added that as soon as her car arrived, Weinstein leaned into her ear and told her not to tell anyone about the events that had just transpired, after which she got into her car and started sobbing.

Weinstein's sexual assault scandal came to light via an Oct. 5 New York Times article, in which multiple women, including actress Ashley Judd, accused the Hollywood mogul of sexual harassment and misconduct. Since then, many other actresses have come forward with their explosive allegations, including the likes of Rose McGowan, Cara Delevingne, Angelina Jolie and Gwyneth Paltrow, among others.

Read Headey's tweets below: