If you’re looking for actual real life footage of 1980s Japan, then I’m not sure this is it. I’ve watched a bunch of the movies where they are ripping the footage from.
All good films, though maybe acquired tastes unless you are into Japanese film. The second is a documentary by Wim Wenders exploring the work of Yasujiro Ozu, mixed with Wenders' visual impressions of 80s Japan.
* https://en.wikipedia.org/wiki/Tampopo
* https://en.wikipedia.org/wiki/Tokyo-Ga
* https://en.wikipedia.org/wiki/Boiling_Point_(1990_film)
All good films, though maybe acquired tastes unless you are into Japanese film. The second is a documentary by Wim Wenders exploring the work of Yasujiro Ozu, mixed with Wenders' visual impressions of 80s Japan.