This clip of a rock festival from a Soviet cartoon must surely be anti-Western-decadence propaganda.... It couldn't possibly be meant to be attractive and exciting? Could it?
It's from Sergey Yutkevich and Anatoliy Karanovich's "Mayakovsky Laughs," which also has a scene involving drugs and hallucinations
The rock festival bit reminded me of Lemmings by National Lampoon - a 1973 stage show as well as a record, mocking the mindless squalor of the mass gatherings of the era