The documentary "Don't Die: The Man Who Wants to Live Forever" presents a fascinating and somewhat unsettling exploration of the human quest for immortality, as embodied by wealthy entrepreneur Bryan Johnson. With his considerable resources, Johnson embarks on an ambitious journey to defy aging and extend his life, raising fundamental questions about the nature of existence, the consequences of playing god with one's body, and the ethics of prioritizing individual longevity over collective well-being. Through its 88-minute runtime, the film offers a thought-provoking, albeit not entirely balanced, examination of Johnson's endeavors, oscillating between awe-inspiring determination and troubling narcissism.

The documentary's strongest aspect lies in its ability to spark intense debates about the implications of anti-aging research and the limits of human enhancement. Johnson's unwavering dedication to his cause is undeniably captivating, and the film does an excellent job of conveying the intricacies of his regimen, which includes a strict diet, rigorous exercise, and an array of unorthodox medical interventions. However, as the narrative progresses, it becomes increasingly apparent that the film's focus on Johnson's personal quest often overshadows more nuanced discussions about the broader societal and philosophical implications of his pursuits. This narrow focus can make the documentary feel somewhat insular and self-indulgent, undermining its potential to engage with the more profound questions it raises.

Despite these limitations, "Don't Die: The Man Who Wants to Live Forever" remains a compelling watch, particularly for viewers interested in the intersection of technology, medicine, and human identity. The film's themes of mortality, the pursuit of knowledge, and the human condition are undeniably timely and thought-provoking, even if the execution sometimes falls short of providing a fully satisfying exploration of these complex issues. Ultimately, the documentary's value lies in its capacity to inspire reflection and conversation, rather than in its ability to provide definitive answers or a comprehensive examination of the topics it touches upon. As such, it is likely to resonate with audiences seeking a challenging and unconventional cinematic experience, even if it does not fully live up to its potential as a groundbreaking or deeply insightful documentary.