I have written up a scenario for Liminal Horror that is loosely inspired by the production of Nosferatu. It features the real life theft of FW Murnau's skull as a plot point, as well as the production designer appearing as a vampire. Looking for a second opinion on if the names should be changed as to avoid potential legal trouble, it's hard for me to say for certain as Murnau has been dead for nearly a century and the film itself is 100 years old.
Would it be safe to publish as is or should the pseudo-historical background be changed for legal security?