Kate Hudson ignores criticism of her performance of “Song Sung Blue” leveled at her by the son of a musician depicted in the biopic.

Hudson received a Golden Globe nomination for her portrayal of Claire Sardina, one half of the real-life husband-and-wife musical duo Lightning and Thunder, who rose to national fame as a Neil Diamond tribute act in the 1990s.

However, just days after “Song Sung Blue” hit theaters last month, she and co-star Hugh Jackman were deemed “monsters” by Michael Sardina Jr., the adult son of Jackman’s character Mike Sardina, who insisted that his late father would be “rolling in his grave right now” over the film.

Speaking to The Hollywood Reporter in an interview published Thursday, Hudson had a brief but concise response when asked about Michael Sardina Jr.’s comments.

Hugh Jackman and Kate Hudson star as Mike and Claire Sardina in musical biopic
Hugh Jackman and Kate Hudson star as Mike and Claire Sardina in the musical biopic “Song Sung Blue.”

Courtesy of focus functions

“Honestly, I don’t even know,” he told the outlet. “Out of respect for our filmmakers, I’m not the right person to talk about it.”

As for the real-life Claire Sardina, the actor added: “I’m very happy to have met Claire, who is such a wonderful woman, and she is very happy with the movie.”

Written and directed by Craig Brewer, “Song Sung Blue” is based on a 2008 documentary of the same name that was released two years after the death of Mike Sardina at age 55.

Although Michael Sardina Jr. does not appear in the documentary, both he and his sister, Angelina Sardina, were hired as consultants for the big-screen film. Although the character of Angelina Sardina is played by actor and musician King Princess, Michael Sardina Jr. is not referenced at any point in the new film.

Hudson, left, poses with real-life Claire Sardina at the New York premiere of “Song Sung Blue” on Dec. 11.
Hudson, left, poses with real-life Claire Sardina at the New York premiere of “Song Sung Blue” on Dec. 11.

Taylor Hill via Getty Images

Speaking to the Daily Mail last month, Michael Sardina Jr. criticized “Song Sung Blue” for having “completely destroyed what my father worked for his entire life: his legacy,” and said he was considering legal action.

As for Hudson and Jackman, he noted: “Every interview those monsters have been in [on] “National television doesn’t even mention my existence, even though I was the most predominant force in my father’s life, even when I wasn’t in Wisconsin, because I’m his only son.”

Her comments were in stark contrast to those of her stepmother, who performed with Hudson and Jackman at the New York premiere of “Song Sung Blue” last month.

“His dream, initially, was, ‘Someday we’ll go to Las Vegas, honey.’ Well, that didn’t happen,” Claire Sardina told “Inside Edition” when asked how her late husband would view the film. “But this is just as good.”