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.
Rewatch Bonus: The film is filled with details that don't seem significant until you get to the end (indeed, for the whole first half it seems like a quiet character piece with little actually happening), then you realize how cleverly done everything was.