These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Animation Age Ghetto: Averted. The short requires viewers to have knowledge on the movie-making process, This short is one of the "cartoons for adults" ("мультфильм для взрослых", multfilm dlya vzroslikh) — a special category in the Soviet Union for animation made for adults.
Executive Meddling: In-universe example. It starts during pre-production with the director having to drop and rewrite entire pages of the script to get the movie approved by officials and continues during the production.