This document provides guidance on finding a documentary subject and developing documentary ideas. It discusses four tendencies of documentaries, including recording/revealing, persuading, expressing, and analyzing. Tips are given such as following your passion, finding a compelling character, making it personal, and asking questions. The document emphasizes choosing a topic you have unique access to and personal connection with, and avoiding subjects you don't have direct experience with. It also provides examples of successful documentaries and encourages filmmakers to trust their instincts and passion in choosing a subject.