Question: What is the cause of death of director of film The Drums Of Jeopardy (1923 Film)?
Sentence (from "The Drums of Jeopardy (1923 film)"): The name of the villain in the story was originally called Boris Karlov, but when the actor Boris Karloff rose to prominence circa 1923, the character's name was changed to Gregor Karlov to avoid confusion.
Relevant evidence: No