The Black Secret is a 1919 American adventure film serial directed by George B. Seitz. The film was recorded in both Fort Lee New Jersey as well as in the nearby Hudson Palisades. Recording took place during a time when many of the early 20th century film studios in America's first motion picture industry were based there. The film is currently considered to be lost. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Film