Val Kilmer’s “Conspiracy” Director Says Late Actor Was ‘Worst Human Being I’ve Ever Known’

**Director Critiques Late Actor Val Kilmer’s On-Set Behaviour Following Death**

In a recent social media post, director Adam Marcus has labelled the late Val Kilmer as the “worst human being” he has ever encountered during his career. The comments emerged on May 31, 2026, showcasing Marcus’s reflections on working with Kilmer during the production of their 2008 action thriller, *Conspiracy*. These remarks add fuel to long-standing discussions surrounding Kilmer’s reportedly difficult temperament in Hollywood.

Kilmer, who passed away from pneumonia on April 1, 2025, starred as William “Spooky” MacPherson in *Conspiracy*, a film that follows the story of a disabled Iraq War veteran who uncovers a corporate conspiracy while searching for an old friend in Arizona. The movie depicts themes of loss and intrigue, but Marcus’s recent comments highlight a contrasting narrative regarding Kilmer’s conduct on set.

In his post, Marcus, 58, recalled his time directing Kilmer, who is widely recognised for his roles in *Top Gun* and *Tombstone*. He noted, “Here’s me and the Putz working it out on the set of Conspiracy. So yeah, that happened,” referencing their interactions during filming. His post has drawn attention for its candidness, especially given Kilmer’s passing and the typical industry norm of refraining from criticism of deceased individuals.

Further engaging with the potential backlash against his brash comments, Marcus asserted, “And to any of you rolling your eyes because of the whole ‘don’t speak ill of the dead bulls—,’ f— that.” He emphasised that if Kilmer had acted as he reportedly did during filming in today’s climate, he would likely have faced severe professional repercussions. Marcus concluded his remarks by reaffirming his negative experiences, stating, “Worst human being I’ve ever known… and that is really saying something.”

The director’s statements have stirred considerable attention, with many recalling other filmmakers’ experiences working with Kilmer. Notably, he had a tumultuous relationship with director Joel Schumacher during the filming of *Batman Forever* in 1995, where Schumacher described Kilmer as “childish and impossible” and labelled him a “psychologically disturbed human being.” Similarly, director John Frankenheimer vowed never to work with Kilmer again after their collaboration for *The Island of Dr. Moreau*.

In response to the criticisms levelled against him over the years, Kilmer expressed his awareness of his sometimes contentious reputation. In a 2003 interview with *Rolling Stone*, he acknowledged, “I’ve been careless about how I viewed my business. But I trust that the truth is the truth and a lie is a lie.” He suggested that some comments made by industry peers might stem from their own problematic reputations.

Kilmer addressed his behaviour more comprehensive in the 2021 documentary *Val*, which reflects on his life and career in film. He candidly stated, “I have behaved poorly. I have behaved bravely. I have behaved bizarrely to some. I deny none of this and have no regrets because I have lost and found parts of myself that I never knew existed. And I am blessed.” This introspection presents a complex intersection of his acknowledged flaws and personal growth throughout his career.

The debate surrounding Kilmer’s legacy continues to unfold, with Marcus’s recent comments reigniting conversations about the actor’s off-screen persona. While some remember him for his undeniable talent and iconic performances, others reflect on the challenges he posed as a collaborator.

As the entertainment industry grapples with the memories of its past players, the reflections from those who worked closely with Kilmer serve as a reminder of the intricacies involved in artistic collaboration. With powerful performances often coming from contentious environments, the legacy of figures like Val Kilmer remains both celebrated and scrutinised.