Pieter Verhoeff already filmed the book The Letter for the King in 2008. In the summer of 2018, the Dutch publisher Leopold announced that the international television rights had been sold to the British producer FilmWave. They turned it into a large-scale English-language series for Netflix. Actors such as Islam Bouakkaz (Arman) and Jack Barton (Foldo) were cast. Production started in New Zealand in 2018.
A trailer has since been published and The Letter for the King will be released on Netflix on the 20th of March. The series consists of six episodes.
