Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: What is the title of the four-episode special of 'Doctor Who', made for the Red Nose Day telethon in the UK, broadcast in March 1999?

Answer: doctor who

Question: What was the last silent film in which Chaplin's little tramp appeared?

Answer: chaplin

Question: Name the Italian-born American film producer (of Death Wish, Barbarella, and Hannibal) who died in November 2010 age 91?

Answer:
death wish