Documentaries are primarily intended to provide information and knowledge to the audience, rather than to entertain or sell something.

Fictional documentaries are not a common type of documentary film, as documentaries are typically based on real events and people.

The director of a documentary film has a wide range of responsibilities, including controlling the creative vision, collaborating with the crew and subjects, and ensuring the film is accurate and informative.

Research is essential in documentary filmmaking to gather information about the topic, identify potential sources and interviewees, and develop a strong narrative structure.

Building trust with the subjects of a documentary film is essential to getting them to open up and share their stories. This can be done by being honest and transparent about your intentions, spending time getting to know them before filming, and respecting their privacy and boundaries.

The story is the most important element of a documentary film, as it is what will engage the audience and keep them watching.

Documentaries are based on real events and use real footage, while docudramas are fictionalized and use reenactments. Documentaries are also typically more objective, while docudramas are more subjective.

Documentary filmmakers need to be aware of the right to privacy, the right to informed consent, and the right to a fair and accurate portrayal. They also need to be mindful of the potential impact of their film on the subjects and the community.

Documentary filmmakers often face challenges in gaining access to the subjects and locations they need, getting the subjects to open up and share their stories, and balancing objectivity and subjectivity.

Nanook of the North (1922), Night and Fog (1955), and The Thin Blue Line (1988) are all considered to be among the most influential documentary films of all time.

Jiro Dreams of Sushi (2011), The Act of Killing (2012), and Amy (2015) are all considered to be among the best documentary films of recent years.

The use of virtual reality and augmented reality, the rise of citizen journalism, and the increasing popularity of short-form documentaries are all emerging trends in documentary filmmaking.

The increasing cost of production, the difficulty of getting films distributed, and the competition from other forms of media are all challenges facing documentary filmmakers today.

Documentary films are likely to become more interactive and immersive, be used to address social and political issues, and become more accessible to a wider audience in the future.