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.
Genius Bonus: In the beginning of the movie, when they're watching TV, there's an equation in the bottom of the screen. These are Einstein's Field Equations and represent the gravitational effects produced by a given mass.