Just before going to the Castle, Kafka ask Bizzlebek to burn his manuscripts if he never came back. Bizzlebek replies "such an extraordinary request". This is in reference of the real request Kafka asked his friend Max Brod before dying. Brod couldn't go with the request and had Kafka's work published.
Loosely based on Franz Kafka's novel, "The Castle". In it a protagonist, known only as K., struggles to gain access to the mysterious authorities of a castle who govern the village for unknown reasons. Kafka died before finishing the work.
In the novel "The Castle", as in the film, the protagonist, struggles to gain access to the mysterious authorities of a castle who govern the village for unknown reasons. "The Castle" is about alienation, bureaucracy, the seemingly endless frustrations of man's attempts to stand against the system, and the futile and hopeless pursuit of an unobtainable goal.
When Kafka first talks with Bizzlebek, he mentions that he read "That story about the Penal Colony". He is referring to the short story, "The Penal Colony". In it, Kafka describes the last use of an elaborate torture and execution device that carves the sentence of the condemned prisoner on his skin in a script before letting him die, all in the course of twelve hours.
When searching for Edward in the "Cafe Continental", as he exits, some of his friends ask Kafka: "What are you working on?" He replies:" A thing about a man who wakes up and finds himself transformed into a giant insect!" This is a direct reference to Kafka's novel: "The Metamorphosis".