Development Development of
The Zone of Interest began in 2014. After completing
Under the Skin,
Jonathan Glazer came across a newspaper preview of the then-upcoming
Martin Amis novel
The Zone of Interest and became intrigued. He optioned the novel after reading it. Paul and Hannah Doll, the novel's two main characters, were loosely based on
Rudolf Höss, the longest-serving German
commandant of
Auschwitz concentration camp, and his wife Hedwig. Glazer opted to use the historical figures instead and conducted two years of extensive research into the Hösses. He made several visits to
Auschwitz and was profoundly affected by the sight of the Höss residence, which was separated from the camp by a mere garden wall. He collaborated with the
Auschwitz Museum and other organisations, and obtained special permission to access the archives, where he examined testimonies provided by survivors and individuals who had been employed in the Höss household. By piecing together these testimonies, Glazer gradually constructed a detailed portrayal of the individuals connected to the events. He also consulted historian
Timothy Snyder's 2015 book
Black Earth: The Holocaust as History and Warning during his research. He compared his approach to the writing of philosopher
Gillian Rose, who envisioned a film "that could make us feel 'unsafe', by showing how we're emotionally and politically closer to the perpetrator culture than we'd like to think" and a film seen through the "dry eyes of grief" that is unsentimental and "forensic". Glazer confirmed development of the project in 2019, with
A24,
Film4,
Access Entertainment and House Productions co-financing and producing.
Christian Friedel first met Glazer and producer
James Wilson in
London in 2019 for the role of Rudolf Höss. Despite his own unwillingness to play
Nazi figures, he was intrigued by Glazer's approach, which aimed to "give this monstrous person a human face". Hüller was first sent an excerpt of the script, an argument between Rudolf and Hedwig presented out of context, before learning the project's nature as a film about the Holocaust. Although she had resolved never to play a Nazi, Hüller was convinced after reading the full script and meeting with Glazer, believing that he shared and addressed her concerns about how to properly depict
Nazism on screen. Hüller's own dog, a black
Weimaraner, plays Dilla, the Höss family dog in the film. The young Polish girl in the film is inspired by
Aleksandra Bystroń-Kołodziejczyk, whom Glazer met during his research. As a 16-year-old member of the Polish
Home Army, she used to cycle to the camp to leave apples for the starving prisoners. As in the film, she discovered a piece of music written by a prisoner. The prisoner,
Joseph Wulf, worked at
Auschwitz III–Monowitz. He survived the camp and was one of the first people to document the atrocities of the Holocaust, a cause to which he dedicated his life. Bystroń-Kołodziejczyk died shortly after she met Glazer. The bike the film uses and the dress the actress wears both belonged to her. Glazer dedicated the film to her while accepting the award for
Best International Feature Film at the
96th Academy Awards. The film's final scene, in which Höss retches repeatedly while walking down a flight of stairs, was inspired by the ending of the 2012 documentary
The Act of Killing by
Joshua Oppenheimer. In that film,
Anwar Congo, a gangster and former
far-right paramilitary enforcer, retches repeatedly while visiting the scene of several of his murders.
Filming next to the
Auschwitz concentration camp (2012) The original Höss house has been a private residence since the end of the war. Principal photography began around Auschwitz in summer 2021 and lasted approximately 55 days. The film was shot on
Sony Venice digital cameras equipped with
Leica lenses. Glazer and cinematographer
Łukasz Żal embedded up to 10 cameras in and around the house and kept them running simultaneously, with no crew on set. Żal and his team were stationed in the basement, while Glazer and the rest of the crew were in a container on the other side of the wall, away from the actors. Each take would last 10 minutes. The approach, which Glazer dubbed "
Big Brother in the Nazi house", allowed the actors to improvise and experiment extensively during filming. The nighttime sequences involving the Polish girl, where there was no natural light available, were shot using a
thermal imaging camera provided by the Polish military. The low-resolution thermal imagery was then
upscaled using
AI during post-production. He spent a year building a sound library before filming began, which included sounds of manufacturing machinery, crematoria, furnaces, boots, period-accurate gunfire and human sounds of pain. He continued building the library well into the shoot and post-production. As many of the new arrivals at Auschwitz at the time were French, Burn sourced their voices from protests and riots in
Paris in 2022. The sounds of drunken Auschwitz guards were sourced at the
Reeperbahn in
Hamburg. English musician
Mica Levi started working on the score as early as 2016, and later spent a year in the studio alongside Glazer and editor Paul Watts. "No stone was left unturned" said Levi in a
Sight and Sound interview, as the team explored every possible avenue for how music could work in the film. "It couldn't just work on a subliminal level," Levi said, "it had to be technical rather than emotive." In the end Levi wrote dense and "formally inventive", vocal-based compositions accompanied by a pitch black screen for the prologue and the epilogue, plus soundscapes created for the sequences involving the Polish girl and montages of garden flowers. The compositions combine human voices with a
synthesizer, which Levi described as a pairing of "the oldest, most primordial instrument" with "the most modern". ==Release==