What is a Documentary?

What do you think a documentary film is? Why are they interesting and important? Please list 3 different reasons in detail and your justification for each.

I think a documentary film is a video that discusses a certain real-life topic providing specific details regarding the topic. They are interesting because they often focus on specific topics that are often less known to the public. If the video is short, it gives a good overview of the topic. If the video is long, it gives the detailed specifics about the topic. They are important because they give the audience a well rounded idea of the topic. Because documentaries require the creator to research the topic thoroughly, their knowledge gets directly translated to the film. They are interesting because documentaries cannot be fully planned from the beginning. The film will always be influenced by the uncontrollable circumstances.