* AbilityOverAppearance: Sever was originally written as a man.
* BoxOfficeBomb: Budget, $70–$90 million. Box office, $19,924,033.
* CaliforniaDoubling: The film inverts and subverts this trope thanks to its shooting location of UsefulNotes/{{Vancouver}} -- while the story takes place there, the film features no Vancouver landmarks, which makes the film look as if it takes place somewhere else. (However, as practically everybody who has ever reviewed this movie has observed, it is somewhat mysterious why Canada tolerates American agents wreaking havoc on its territory.)
* CreatorBacklash: Wych Kaosayananda quickly disowned the film, singling out the producer's interference and how it affected the film's editing and pacing. During the film's premiere, he deliberately showed up half an hour late and "pretty much hyperventilated for the whole evening."
* CreatorKiller: Director Wych "Kaos" Kaosayananda was banished back to his native Thailand after this film's nuclear implosion at the American box office, and he didn't even get credited on anything again until 2012, a full decade later. It also led to uncredited writer and TV producer Peter M. Lenkov to never write another cinematic script.
* FollowTheLeader: The film's visual look, with black clothing, sunglasses, and slow motion were all based on ''Film/TheMatrix''. In fact, that film's success was the only reason this film was greenlit into production. Both films also share a composer, Don Davis (Interestingly enough, the film's score was one of the most critically panned aspects of the film).
* RealLifeRelative: While never appearing at the same time, Creator/BrianDrummond and his son, Aiden appear as a [[TheCameo VPD officer]] and Michael Gant, respectively.
* ReferencedBy: The AltText to "[[https://xkcd.com/2230/ Versus Bracket]]" by WebComic/{{XKCD}} reads "Some works didn't make the cut; in "Ecks vs. Sever" vs. the passage of time, the latter seems to have won pretty decisively".
* SavedFromDevelopmentHell: The film started in 1986 as a spec script by Alan B. [=McElroy=], titled ''Legion'', then ''Gunner''. Vestron Pictures tried to make the movie in 1988, with Dwight H. Little directing and Creator/DolphLundgren starring, but Charles W. Fries didn't want to do it.
* WhatCouldHaveBeen:
** When the director had earlier read the script, he felt that it was rather similar to the films ''Film/TheKiller1989'' and ''Film/TheProfessional'', while actually visualizing that Creator/ChowYunFat and Creator/JeanReno could be perfect square-off leads. Creator/FranchisePictures didn't find either Chow and Reno financially viable though.
** The film's original stars were Creator/WesleySnipes and Creator/JetLi, then Creator/VinDiesel and Creator/SylvesterStallone.
* WorkingTitle: ''Legion'', ''Gunner'', ''Ecks. vs Sever''.
----