Amber Heard has insisted that her role in the upcoming “Aquaman” sequel was drastically cut back after her ex-husband Johnny Depp launched a smear campaign against her by saying she lied about abuse allegations.

But in a new blow for the actress, the high-powered head of DC Films testified Tuesday that the star’s role in the big-budget flick was in no way impacted by innuendo surrounding her tumultuous marriage to Depp.

Walter Hamada made the claim via video link at the former couple’s blockbuster defamation trial in Virginia.

Hamada — who has been president of DC Films since 2018 — alleged it was always intended for Heard to have a smaller role in the film franchise.

However, he added that producers were so “concerned” about a lack of chemistry between Heard and co-star Jason Momoa in the first “Aquaman” film that they even considered recasting her in the sequel.

“I think editorially they were able to make that relationship work in the first movie,” the movie boss stated. “But there was a concern that it took a lot of effort to get there and that would we be better off finding someone with more natural chemistry with Jason Momoa and move forward that way.”

DC Films President Walter Hamada (inset) testified Tuesday that Heard’s salary and screen time in the upcoming “Aquaman” sequel was unrelated to gossip about her turbulent marriage to Johnny Depp.

Although Heard managed to keep her spot in the sequel, she alleged that her role was significantly reduced.