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.
Fridge Horror: The bodies of Whitman, Price, and Haddad ("Last season's winners? No, last season's losers.") could be an inversion of Fridge Horror, as it's unlikely that those three were innocent like Richards, who was an exception to the show's "no political prisoners" arrangement with the justice system. At least if they're Released to Elsewhere, they've not been set loose to resume whatever crimes got them the death penalty in the first place.
One of the possible prizes is a "trial by jury" so we can infer that prisoners rarely if ever get a fair trial. It's also likely that even if the contestants actually got the prize, any jury would be biased against them and send them back to prison. Quite frankly, no one would ever get out even if the contest were fair.
Harsher in Hindsight: The film (and the book it was based on) basically forsaw the coming of reality TV.
The movie may have been an escapist action flick starring The Governator, but it (in its own way) taught about the negative aspects of completely turning off your brain in favor of pure, violent escapism, how soul-destroying humanity's bloodlust can be, and the need to question the version of reality that TV presnts. It also teaches about the value of tenacity and standing up for yourself.
Woolseyism: The Mexican Spanish subbed version has the He was Sub-Zero, Now, just plain Zero! line changed. In that translation, that line was changed to Aqui esta Sub-Zero, Ahora es un cero a la izquierda, Being cero a la izquierda a Spanish phrase meaning "worthless".note It literally means a zero to the left, after the mathematical term to use a zero before a decimal point, who normally doesn't mean anything, hence the phrase The Mexican Spanish dub left the original phrase translated literally from English.
Moral Event Horizon: The book makes it clear throughout that the cops in Running Man's world are not exactly very nice people, but what sends them clean over this is when they try to take down both Richards and the innocent civilian woman in the car with him. One who was just begging them not to shoot