The Twilight Zone: Nightmare At 30,000 Feet - 7 Big Changes To The Original

After surviving a trial of utterly desperate lunacy, the passengers in each of the original three versions of Nightmare finally receive the promise of validation. In the 1983 version, a maintenance crew discovers the damage caused by the gremlin. At the end of the original 1963 episode, Rod Serling assures the viewer that this discovery will take place at a later time.

Richard Matheson's 1961 short story doesn't make any explicit promises that Arthur will be validated, but Arthur nonetheless sleeps soundly with the hope that others will believe him soon enough. As with the 1963 and 1983 versions, this ending achieves a certain sense of irony by depicting a man who only stops questioning his sanity at the very moment he's being carted away on a stretcher.

In the 2019 update, this is completely flipped on its head. Instead of looking like a madman only to later be proven right, Justin is entirely in the wrong from beginning to end. Causing the crash he warned against isn't validation, it's self-fulfilling prophecy. Unlike the original protagonists, Justin is not rewarded with victory over a gremlin or even the dry amusement of realizing that he wouldn't be believed until long after leaving the scene. Instead, his reward is straight-up murder at the hands of the people whose lives he endangered by refusing to question his sanity before it was too late.