a bit problem with these "scatterbrain/nitpicking" documentaries is that one needs to be familiar with local trivia to fully savor them.
thus these flicks can hardly ever reach a wider audience.
i adore Karel Vachek (many local documentarists represented on dafilms are certainly heavily influenced by him) but i can imagine that many of his "inside jokes" go in vain when a "foreigner" watches his flicks.
it is maybe a bit similar to excursions of Robinson in Patrick Keiller's films — without familiarity with local trivia one misses many ironical references.
and it is also the case with Thomas Heise's "Material" that would certainly be much more relishable if i would be able to identify all the ppl and be familiar with all the occurrences that are being observed.
however, Karel Vachek used to repeat that it is important to expose oneself to books, films, etc. that are not comprehensible (those one doesn't understand).
so, it makes sense even for the foreigners to watch his, or Patrick Keiller's, or Thomas Heise's, etc., etc. films (even at the cost that many revealing details captured in those films will slip our attention).
btw. while watching "Material", i spent quite a lot of time trying to solve the enigma of, "depressing news and pictures from Prague".
the guy (Egon Krenz???) who says it (on Nov 4th, 1989) makes probably a reference to the exodus of East Germans to the West via the West German embassy in Prague.
at first, the Iron Curtain opened in Hungary in May 1989.
so, East Germans started to escape via Hungary.
then, the East German government imposed visa on travel to Hungary, so they started to flock around/inside the West German embassy in Prague (demanding escape).
at first, they lived and waited for an escape approval in residential quarters of the embassy but as the number of runaways was growing they started to live in tents on embassy's plot.
after some negotiations, it was announced (on September 30th) that runaways will be allowed to board a train in Prague that will take them to West Germany.
footage from October 3rd ↓
https://youtu.be/5ctmascW0i0
so, onwards many (in sum, ca. 15.000 East Germans, till early November, Berlin Wall fell on November 9th) escaped to the West via the West German embassy in Prague — leaving behind all their tents and all their cars (mostly Trabis), parking in the streets adjoined to the embassy.
to commemorate all these occurrences (and abandoned Trabis) a sculpture called "Quo Vadis" was erected in the gardens of the embassy later ↓
so, i was able (i believe) to decipher one of the minor references (and it was interesting to hear Krenz's??? claim about "depressing news and pictures from Prague") but related most of the other details i can only repeat the final words of Aleister Crowley, "i am perplexed".
however, watching perplexing footage is indispensable for one's "growth" (Karel Vachek says).