How was the documentary filmed?

The so-called recording is to keep shooting and follow the same thing for a long time.

All nonfiction movies or TV series that truly record social and natural things are documentaries. Documentate English is documented, which means documents, official documents, certificates, certificates, vouchers and so on. They all mean unforgeable. Evans, an international documentary master, said more than once that if the documentary records the present, it will become the history of the future. The main feature of documentary is its non-fiction, whether it is to record characters or natural landscapes. The French film dictionary defines documentary as follows: a film with literary nature and based on literature is called documentary. In the American film glossary, the definition of documentary is as follows: "Documentary is a film that excludes fiction. It has an attractive and convincing theme, draws materials from real life, and uses clips and sounds to increase the attraction of the work. " The definition of TV documentary in China's Encyclopedia of Radio and Television at Home and Abroad is: "Documentary TV movies that directly obtain images and audio data from real life through non-fictional artistic techniques and truly show objective things and the author's understanding and evaluation of a thing." The authenticity of recording film and television documentaries is first manifested in its non-fiction, and documentaries must be shot by real people. Secondly, the basic method of documentary creation is recording, not performing. The conference site and the World War II battle site are really being filmed with cameras. This is the job of a war correspondent.