documentary

noun
B1
1
a film or a radio or television programme giving facts about something
مستند, فیلم مستند, برنامه مستند
adjective
1
consisting of documents
مستند, سندی, مدرکی
2
giving a record of or report on the facts about something, especially by using pictures, recordings, etc. of people involved
مستند, مدرک‌محور
a documentary film about the war
The film was given a documentary style by the director.