Detailed Instructions: Given a passage and a question, find the answer to the question based on the passage. The answer should consist of only one word that lies in the span of only one of the sentences in the passage.
Q: Paragraph: In the Heat of the Night is a 1967 American mystery drama film directed by Norman Jewison . It is based on John Ball 's 1965 novel of the same name and tells the story of Virgil Tibbs , a black police detective from Philadelphia , who becomes involved in a murder investigation in a small town in Mississippi . It stars Sidney Poitier and Rod Steiger , and was produced by Walter Mirisch . The screenplay was by Stirling Silliphant .
Question: when was in the heat of the night made

A:
1967