The entertainment industry is frequently the subject of feature-length documentaries that explore everything from the technical craft of filmmaking to the personal lives of its icons. A feature documentary is defined as a non-fiction motion picture with a running time of more than 40 minutes Academy of Motion Picture Arts and Sciences

: Uses hundreds of hours of Marlon Brando's personal audio recordings to tell his life story in his own words.

highlight deep-seated problems such as child abuse, secret parties, and corruption within major networks.