Douglas Kelley wrote the book "22 Cells in Nuremberg" which details his personal accounts of interactions with Nuremberg trial persons. The final chapter of his book details how he could see the events of pre-WWII Germany occurring in modern day United States. Additionally, after the events of the Nuremberg trials, Kelley worked with the Berkeley and Oakland police departments in California, interviewing police officers to assess their psychological profiles, often drawing parallels to those he interviewed in Nuremberg. Much of his research is available in the UC Berkeley libraries.
The cast includes two Oscar winners: Rami Malek, Russell Crowe, and two Oscar nominees: Michael Shannon, and Richard E. Grant.
Russell Crowe, Michael Shannon, Richard E. Grant, and John Slattery all appeared in comic book movies: Crowe and Shannon appeared in the DCEU as Jor-El and General Zod respectively, Grant appeared in Logan (2017) as part of the X-Men film series, while Slattery appeared in the MCU as Howard Stark. Crowe also appeared in the MCU as Zeus in Thor: Love and Thunder (2022), and in the SSU as Nikolai Kravinoff in Kraven the Hunter (2024).