In the latest legal filing in the "End of Us" saga, director and star Justin Baldoni claims co-star Blake Lively relied on powerful people in her life to ensure her vision for the film ultimately came to fruition accomplish.

One of those powerful people is pop star Taylor Swift, whom Lively has considered her best friend for years. The other is her husband Ryan Reynolds.

Baldoni filed a lawsuit Thursday against Lively, Reynolds and their publicists, claiming Reynolds and Swift endorsed a version of a scene from Lively's movie. His lawsuit includes screenshots of text messages between Baldoni and Lively.

Swift is not named in the lawsuit, and only one text message mentions "Taylor." In the text of the lawsuit, she is referred to as a "super celebrity friend."

Baldoni's team confirmed to NBC News that the Taylor named in the lawsuit is Swift.

Swift did not respond to a request for comment.

Lively sued Baldoni late last month, accusing him of harassing her on set and launching a smear campaign to tarnish her reputation.

Baldoni's lawyers called the accusations "completely false, outrageous and intentionally obscene" and accused Lively of trying to salvage his reputation.

Lively's attorney said Thursday that Baldoni's lawsuit is "another chapter in the abuser's playbook."

"It's an age-old story: A woman presents concrete evidence of sexual harassment and retaliation, and the abuser attempts to turn the tables on the victim. This is what experts call DARVO. Denial. Assault. Reverse Victim Perpetrator," she the team said in a statement.

Lively filed the lawsuit the same day Baldoni sued The New York Times for defamation over an article titled "We Can Bury Anyone: Inside the Hollywood Smear Machine." The Times first reported Lively's civil rights complaint against Baldoni ahead of the lawsuit.

Lively said her "decision to speak out led to further retaliation and attacks."

Reynolds did not respond to a request for comment Thursday.

In his latest lawsuit, Baldoni said he gave Lively the chance to rewrite the famous "rooftop scene" in which Baldoni and Lively's characters first met on "This Is Us."

He said in the lawsuit that Lively texted him asking about his opportunity, while noting that other directors wouldn't allow her to write scenes.

Baldoni said in the lawsuit that he was "reluctant" to ask her to rewrite but "felt compelled" to give her a chance and agreed to review her draft, which was "significantly different" than what was originally written.

Baldoni's lawsuit says he "appreciated Lively's enthusiasm" and told her the scene would likely fall somewhere between the original and her new version.

Baldoni said Lively was "silent for days" after he responded.

Lively eventually texted Baldoni and admitted that his response "certainly didn't make me feel good," according to screenshots of the conversation alleged in the lawsuit.

"Or they," she added. She also wrote: "Let me be credited for my enthusiasm rather than any specific contribution," the lawsuit states.

"They" seemed to refer to Reynolds and Swift, who Baldoni said had attended an earlier meeting at Lively's home and raved about Lively and her casting in front of Baldoni.

Baldoni said in the lawsuit that when he arrived at that meeting, Reynolds greeted him and "expressed enthusiastic praise for Lively's version of the scene."

At the end of the meeting, "Reynolds and a famous and famous close friend of Lively's walked into the room and similarly began praising Lively's script," the lawsuit states.

"Baldoni understood the subtext: he needed to abide by Lively's direction on the script," the lawsuit reads.

After the meeting, Baldoni allegedly texted Lively.

"I really enjoyed what you guys did...make things more fun and interesting. (I would have felt that way without Ryan and Taylor)," Baldoni wrote, according to the lawsuit.

"We're in this together," Lively wrote in a lengthy response, according to the lawsuit. She also allegedly defended her "dragon," seemingly referring to Reynolds and Swift, the lawsuit said. Their names have been redacted from the set of screenshots included in .

Lively said she was "the luckiest person in the world to have them as my 'Dance Moms' level stage moms. They were so passionate that it was embarrassing," the lawsuit states.

She also calls them “the most trusted partners and the first people I go to for any creative idea.” Lively said she was happy to send her scenes to Baldoni only after Reynolds and Swift approved them, the lawsuit states.

Lively allegedly texted Baldoni: "I think they want you and me to see how they feel about this job because they've been through so much around me where I've been ignored."

She wrote that Reynolds and Swift "have become absolute giants as writers and storytellers outside of their major gigs — just singing, acting or directing," the lawsuit says.

"They also know that I'm not always good at making sure I'm seen and taken advantage of because I'm worried about threatening my self-esteem or worrying about the ease of the process," Lively continued. "They don't give a shit about that. Because of that, everyone listens to them with great respect and enthusiasm, so I guess I have to stop worrying about people liking me."

She then compared herself to Khaleesi from "Game of Thrones," the lawsuit states.

"Like her, I happen to have a few dragons. For better or worse, but usually for the better," Lively said. "Because my dragons also protect those I fight for. So we really all benefit from my gorgeous monsters. I can assure you, you will too."