A reference to the use of documents: "He was told that he must present documentary proof of citizenship."

"Documentary evidence was required by the judge."

1. A work, such as a film or television program, presenting facts about political, social, or historical subjects in a factual and informative manner and often consisting of actual news films or interviews accompanied by narration: "She received an award for her documentary about gorillas and their environmental problems resulting from human interference."
2. Movies or television programs which relate the facts about actual people and events: "They watched the series of documentaries about the royal families of europe."