Please answer the following question: The Green Hornet (serial) -  The Green Hornet (1940) is a Universal movie serial based on The Green Hornet radio series by George W. Trendle and Fran Striker. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
Answer:
Film