(Kate Hudson in Song Sung Blue. Source: Focus Features)

Some roles ask questions an actor has spent years learning to answer. For Kate Hudson, that role is Claire Sardina in Song Sung Blue—a hairdresser and mother whose devotion to music isn’t ornamental but necessary, a woman who sings as a way of seizing life. The film required Hudson to do something she hadn’t yet fully allowed herself to do: trust her own voice.

At an intimate screening and panel in Los Angeles on Dec. 20, moderated by Variety Deputy Awards and Features Editor Jenelle Reilly, Hudson, who was recently nominated for a Golden Globe for Best Performance by a Female Actor in a Motion Picture–Musical or Comedy, spoke about the film with uncommon openness. The conversation unfolded like a meditation on creative faith, touching on risk, collaboration, and what happens when a story finds an artist at exactly the moment she’s ready.

Directed by Craig Brewer, Song Sung Blue is based on the true story of Mike and Claire Sardina, a Milwaukee couple whose Neil Diamond tribute act, Lightning and Thunder, became an unlikely source of connection and joy for audiences. When Hudson first read the script, she knew it was based on real events. What she didn’t expect was how much of it had actually happened.

(The official trailer for Song Sung Blue. Source: Focus Features)

“It’s based on a true story, and I thought to myself, this is insane. There’s no way that this happened to this couple—all of these things,” she explained. “Then I watched the documentary and I was just blown away.”

That sense of astonishment stayed with her, as did her admiration for Brewer’s restraint. Hudson spoke candidly about how easily the story could have tipped into irony. The couple’s devotion to sequins, sparkle, and Diamond might have invited it, but Brewer never took that route.

What moved Hudson most was the seriousness with which the film honors belief—in music, in partnership, in creative joy. The couple, she said, “had so much belief in what they did,” adding that “Craig crafted this beautiful, heartfelt, inspiring story that is their life.”

The film makes an argument about lives that might look ordinary in many ways—working-class performers building meaning through music and community—and treats those dreams with genuine care and respect.

(Hugh Jackman and Kate Hudson in Song Sung Blue. Source: Focus Features)

Hudson’s admiration for Brewer stretches back years, to his 2005 drama Hustle & Flow. Part of that pull, Hudson explained, comes from Brewer’s natural musical instinct. She drew a distinction between people who simply love music and those who are born carrying it inside them—those who have no choice but to let it out. Brewer, she said, belongs to the latter. As a director, that internal rhythm shapes everything. Working with him, she said, feels almost like working with a choreographer: he knows what a scene should feel like before it takes form, what it should sound like before it’s spoken. “He has the music in his head,” she said, and, crucially, a rare ability to communicate that inner tempo to actors.

That steadiness mattered, particularly because Song Sung Blue asks its actors to go somewhere vulnerable. The film was shot in just over a month, leaving little time for traditional rehearsal. Instead, Hudson and her co-star Hugh Jackman, who plays Mike, prepared by recording the music together before filming began. The studio became their rehearsal space—a place where mistakes and risk-taking built trust before the cameras ever rolled.

“The recording studio can be really vulnerable,” Hudson said. “We got to know how we worked, and we were both super easygoing. We hung out a couple of times, but really, it just seemed to click.” By the time filming began, they already understood how to work together.

(Hugh Jackman and Kate Hudson in Song Sung Blue. Source: Focus Features)

Hudson also spoke openly about the challenge of the film’s darker scenes: moments that required emotional precision and restraint. She noted that carrying emotion can sometimes be more powerful than releasing it. Still, once the cameras stopped, she allowed herself space to let go.

The heavier days required space. The actress acknowledged that there were moments during filming when the work took her to an emotionally exposed place—and that sometimes the only response was to stop and feel it fully. “There were some days where you’re just going to a certain place,” she recalled. “You just sit there and you cry for like, 30 minutes to an hour.” Over time, that rhythm became understood on set. “The crew knows. Everybody knows,” she added. What made it possible, she said, was the trust that formed on set. “When you have a great relationship with everybody, they’re there,” she said. “I felt very supported.”

What surprised her, she said, was how the more emotional work energized rather than depleted her. “The emotional days often leave you feeling more alive,” Hudson reflected. “The most exhausting days are actually the ones with the most pace. It’s like being onstage or having to do a lot of different scenes that are upbeat. They can sometimes be more draining than the emotional ones.”

(Hugh Jackman, Kate Hudson, and director/writer Craig Brewer behind-the-scenes on Song Sung Blue. Source: Focus Features)

The conversation eventually turned to Hudson’s long-standing relationship with music. Since Almost Famous launched her career 25 years ago, she has repeatedly shown herself to be a gifted singer, whether through her exuberant performance of “Cinema Italiano” in Nine or stirring live renditions of songs like Prince’s “Nothing Compares 2 U.” And yet, music never quite became the center of her professional identity.

The pandemic forced a reckoning.

In those early weeks, when the world went quiet and certainty dissolved, Hudson found herself asking what she would genuinely regret creatively. The answer came clearly: music. Not sharing it. Not being brave enough to claim what had always been there, waiting. “It changed my whole outlook on the kinds of movies I want to make, the things I want to create, the kind of artist I want to be, the kind of musician I am and want to continue to be,” Hudson added.

Song Sung Blue arrived in that space. Hudson saw the risks immediately—and took them anyway. “I wanted to jump into the deep end,” she said. Her gratitude for Jackman as her onscreen partner was evident. “I couldn't have done it without Hugh,” she continued. “In these love stories, you know that it just doesn’t work if the love story doesn’t work, and Hugh was the greatest partner.”

(Hugh Jackman and Kate Hudson in Song Sung Blue. Source: Focus Features)

She also spoke warmly about meeting the real Claire, who has seen the film and embraced it. To Hudson, her presence was immediately striking. “She just lives in her own beautiful stardom,” she said, noting that Claire is fully aware of how hard her life has been, yet remains deeply grateful. “She’s so grateful that she’s alive, and she loves to sing,” Hudson added.

That embodied joy became central to Hudson’s performance, particularly in the musical moments. “They sang with their whole being,” she said. “We wanted to honor that.”

Later this winter, Hudson will perform at the Wheeler Opera House in Aspen, Colorado, the same stage where she made her stage debut at age seven portraying Alice in a production of Alice in Wonderland. She had one line then, but the memory remains vivid. “I’ll never forget it,” she said. “This is my return.” This time, a Diamond song or two may find its way into the setlist, alongside music from her 2024 studio album Glorious.

Song Sung Blue marks a return of a different kind—to music, to belief, to the part of herself Hudson spent years circling but never fully claimed. The Sardinas sang with their whole being. So does this film. And now, unmistakably, so does she.

Song Sung Blue premieres in theaters on Dec. 25.