* BeamMeUpScotty: By way of PopculturalOsmosis; the line is "This house is 'clean'" not "'clear,'" thank you, [[AceVentura Mr. Ventura]].
* DawsonCasting: Dominique Dunne was a few years older than sixteen.
* FatalMethodActing: Averted. The scene with the clown nearly choked Oliver Robbins to death but Steven Spielberg saved his life when he realized that something wasn't right during the filming of the scene. The next take had the clown prop not be as tight as before.
** FridgeHorror: The actresses portraying Dana and Carol Anne died premature deaths. If Spielberg hadn't noticed something was wrong during the shooting of that scene...
* RealitySubtext: Dana Freeling was entirely absent from the second and third movies, and in fact not mentioned at all. Her actress, Creator/DominiqueDunne, was murdered by her ex-boyfriend in 1982.