The document discusses the key features of documentaries. It begins by noting that the term "documentary" was coined in 1926 by John Grierson, who is considered the father of British and Canadian documentary film. The main features of documentaries are observation, interviews, dramatization, mise-en-scene, and exposition. Observation involves filming people without their awareness to give viewers the sense of being eyewitnesses. Interviews allow participants to give their opinions and views on the topic. Dramatization adds a sense of drama through reconstructed scenes. Mise-en-scene refers to the carefully constructed settings and costumes. Exposition presents the documentary's overall argument or message, often through voiceover.