Aksel Hennie who portrays Joshua French lost 15-16 pounds for the role. He also removed some teeth and put Botox on half of his forehead.
Nikolaj Frobenius, who is credited for the film's story, dropped out of writing the film as he felt the production company pushing it to be a heroic story. He went to publish a non-fiction book based on his research for the film, Kongonotatene, also in 2018.
In the epilogue, it is written in Norwegian: "Joshua French tilbrakte 8 år I kogolesisk fengsel. I 2016 fikk Abedi Kasongos enke, Bibiche Olendjeke, utbetalt «ubuntu» - erstatning fra Joshua Frenchs familie. Samme år bidro den norske stat med midler på til sammen 45 millioner dollar til ulike skogbevaringsdprosjekter i Kongo, gjennom Central African Forest Initiative. Joshua Frenchs mor flyttet til Kongo, og spilte en avgørende rolle for sin sønns sak, både personlig og politisk. Diplomatisk innsats lyktes til slutt, og Joshua French ble løslatt 17. Mai 2017. Tjostolv Moland er gravlagt på hjemstedet Vegårshei."
Which translates to: "Joshua French spent 8 years I Congolese prison. In 2016 Abedi Kasongo's widow, Bibiche Olendjeke, was paid «ubuntu» - compensation from Joshua French's family. The same year, the Norwegian state contributed funds of 45 million dollars to various forest conservation projects in Congo through Central African Forest Initiative. Joshua French's mother moved to Congo and played a crucial role for the cause of her son, both personal and political. Diplomatic efforts finally succeeded, and Joshua French was set free on the 17th of May 2017. Tjostolv Moland is buried in his home municipality of Vegårshei."
Which translates to: "Joshua French spent 8 years I Congolese prison. In 2016 Abedi Kasongo's widow, Bibiche Olendjeke, was paid «ubuntu» - compensation from Joshua French's family. The same year, the Norwegian state contributed funds of 45 million dollars to various forest conservation projects in Congo through Central African Forest Initiative. Joshua French's mother moved to Congo and played a crucial role for the cause of her son, both personal and political. Diplomatic efforts finally succeeded, and Joshua French was set free on the 17th of May 2017. Tjostolv Moland is buried in his home municipality of Vegårshei."