Kelly Osbourne has described a detail in the newly released documentary about her father, Ozzy Osbourne, as “the most heartbreaking” part of watching his decline — and the film’s intimate, sometimes unsettling portrait of the rocker’s last years has prompted a flood of reaction from fans and music press. The documentary, which chronicles Ozzy’s health struggles, family moments and final public performances, gives viewers a close look at how the singer’s physical pain and emotional strain affected those closest to him. (Unilad; People). UNILAD+1

In frank interviews included in the film, Kelly and other family members describe the toll that Parkinson’s disease, multiple surgeries and complications took on Ozzy — and on the family dynamic. Kelly told filmmakers that, above all else, watching his suffering and how it changed the family was hardest to bear; she singled out scenes that show the emotional weight carried by his wife Sharon and their children as especially wrenching. Those personal testimony sequences are intercut with footage from Ozzy’s final performances and candid home moments, producing a portrait that many viewers call both moving and difficult to watch. (People; Rolling Stone). People.com+1

The film also puts Ozzy’s medical history in context. It traces the period after a 2019 neck surgery when he experienced serious complications, chronic pain and periods of depression; interviews in the documentary detail how his mobility and independence declined and how those changes shaped his mood and day-to-day life. Family members and medical commentary featured in the film describe the physical and psychological consequences — including Ozzy’s own candid admissions about suicidal thoughts and reliance on medication for pain and depression. That candour is part of what makes the film feel raw and immediate. (People; Rolling Stone). People.com+1

Kelly’s reaction has been widely reported in follow-up interviews: she has spoken publicly about grieving, about moments of gratitude for the care her father received, and about how documenting the last chapter brought both pain and closure. In the weeks after Ozzy’s death in July 2025, Kelly posted tributes and described the experience as the “hardest moment” of her life; the documentary’s release has reopened that public conversation by giving audiences more of the behind-the-scenes reality her family lived through. (People). People.com

Critics and outlets have noted that the film balances celebration and scrutiny: alongside intimate family scenes and archival concert footage are discussions of medical decisions that some commentators say may have worsened Ozzy’s quality of life. Those elements have prompted debate about the responsibilities of caregivers and the ethics of surgical interventions in high-profile patients — questions the documentary does not entirely resolve but brings into public view. Reviewers praise the film’s honesty while warning that its close-up treatment can be emotionally heavy for viewers. (Rolling Stone; People). Rolling Stone+1

For viewers who watched the documentary, Kelly’s “most heartbreaking” moment—her emphasis on seeing the people who loved Ozzy struggle with his decline—has become a focal point for conversation online. Fans have described feeling deep sympathy for the family and appreciation for the documentary’s willingness to show vulnerability, even as some commentators question how much private pain should be shown to public audiences. The film’s mix of grief, gratitude and musical legacy has made it a major cultural moment for fans and a significant, if painful, capstone to Ozzy’s enormous career. (Unilad; Rolling Stone; People). UNILAD+2Rolling Stone+2