Otaku no Video (おたくのビデオ, Otaku no Bideo, lit. "Otakus' Video") anime film

1991 anime spoofing the life and culture of otaku,
individuals with obsessive interests in media, particularly anime
and manga, as well as the history of Gainax, its
creators. It is noted for its mix of conventional documentary film
styles (with actual film, no less), with a more traditional anime
storytelling fashion. It is licensed in the United States
by AnimEigo. The DAICON III and IV Opening
Animations from the early eighties are also featured in this
OVA.