Tom Harper has revealed that one of the most haunting moments on the set of The Immortal Man did not come from an explosive action sequence or a dramatic line of dialogue. Instead, it came from silence—an almost unbearable, 14-hour stretch of it—delivered by Cillian Murphy as he disappeared into the shattered psyche of Tommy Shelby once again.
According to Harper, the unforgettable moment happened during just the second week of filming. The scene itself sounded deceptively simple on paper. Tommy Shelby was meant to sit alone in a bombed-out trench, carrying the weight of war, loss, and memory in total stillness. But Murphy, known for the almost frightening intensity he brings to his performances, pushed the moment far beyond what anyone on set expected. Rather than slipping in and out of character between takes, he remained locked inside Tommy for the entire day.
Harper described Murphy’s transformation as deeply unsettling. For 14 straight hours, the actor reportedly refused to speak. He did not chat with crew members, joke with castmates, or relax between setups. He stayed seated with rigid posture, his face drained of warmth, his gaze fixed and lifeless. Even more unnerving, Harper recalled that Murphy would not eat and would not break eye contact, maintaining a chilling stillness that made the atmosphere on set feel almost unbearable.
What made the experience so powerful, Harper suggested, was that Murphy was not performing trauma in a conventional way. He was embodying it physically, emotionally, and psychologically. The silence became more than a choice—it became the language of Tommy Shelby’s damage. Instead of explaining the character’s suffering through words, Murphy allowed the emptiness to speak for itself. That kind of commitment, Harper implied, created something far more disturbing and authentic than any scripted monologue could ever achieve.
As the hours dragged on, crew members reportedly began whispering among themselves, shaken by the oppressive energy Murphy projected. Sets are usually busy, technical spaces filled with noise, direction, and movement. But on that night, Harper remembered a heavy, suffocating aura taking over the trench set. It was as if Tommy Shelby’s pain had seeped into the production itself. By the time filming finally wrapped around 3 AM, exhaustion had merged with emotion, leaving everyone with the sense that they had witnessed something rare and deeply unsettling.
For Harper, that day came to define the spirit of The Immortal Man. It was not simply about revisiting a beloved character. It was about showing what remains of a man after years of violence, grief, and inner collapse. In Murphy’s hands, Tommy Shelby is no longer just a gangster or a survivor. He is a man hollowed out by his own darkness, sitting in silence because language no longer reaches the places he has gone.
That is why Harper believes the moment will remain one of the most unforgettable in the film. No grand speech was needed. No dramatic flourish was required. In a single trench, through one actor’s terrifying discipline, The Immortal Man found its emotional core. Murphy did not just play Tommy Shelby that day. He seemed to surrender to him completely, and in doing so, left an entire set shaken by the darkness staring back at them.