Documentary filmmakers are professionals who create non-fiction films that explore real-life subjects, events, or issues. They aim to inform, educate, or inspire audiences by presenting factual content, often using interviews, archival footage, and observational techniques. Their work can cover a wide range of topics, from nature and history to social issues and personal stories. These filmmakers often conduct extensive research to ensure accuracy and authenticity in their storytelling. They may collaborate with experts, historians, or communities to gather insights and perspectives. Notable documentary filmmakers include Ken Burns and Agnès Varda, who have made significant contributions to the genre.