* ActorAllusion: Ace's fear of bats alludes to Jim Carrey's previous film ''Film/BatmanForever''.
* CreatorBacklash: Despite being his StarMakingRole, Creator/JimCarrey does not like Ace Ventura. Carrey was displeased with the sequel, causing him to swear off ever doing a sequel for any of his characters.(Though he has since signed on to a sequel to ''Film/DumbAndDumber'') This had an arguably lasting impact on his career as well since this role is seen as the reason why [[AwardSnub he's yet to get nominated for an Oscar.]]
** JenniferAniston told a story a few years ago about visiting CourteneyCox and bringing a copy of ''Ace Ventura'' to watch. Courteney refused to watch the film, suggesting [[OldShame she doesn't like the film much.]]
* CriticalDissonance: Despite the financial sucess and a huge fanbase, both movies were bashed by reviewers.
* HeyItsThatGuy: Mr. Eko from ''{{Series/Lost}}'' was TheDragon in Nature Calls.
** Rapper ToneLoc as Emilio, Ace's friend on the force in the first movie.
** [[InLivingColor Tommy]] [[WesternAnimation/TheProudFamily Davidson]] as the Wachootoo warrior that kicks Ace's ass in the second movie.
** [[{{Series/Friends}} Monica]] is Melissa.
** The Wachati princess is Creator/SophieOkonedo.
** Mr. Shickadance is [[Series/BreakingBad Don Hector Salamanca]].
** [[Film/TheShawshankRedemption Warden Norton]] is Burton Quinn.
* TheOtherDarrin: Anne Cusack replaces Creator/CourteneyCox in ''Ace Ventura Jr''.
* ReferencedBy: The ''Manga/OnePiece'' character Franky (a.k.a. Cutty Flam) was based on Ace, at the admission of ''One Piece'' creator Eiichiro Oda.
* StarMakingRole: For Jim Carrey
* WhatCouldHaveBeen: There was supposed to be a scene after Ace crashed his car while chasing Dan Marino's kidnappers. The white pigeon landed on his car, he got it singing "I got the white pi-geon! I got the white pi-geon". Then, in a parody of ''Film/TheBirds'', he is surrounded by birds that started tearing him apart. Then he [[AllJustADream wakes up]] with a big "whew." It was removed from the finished film since it was too dark, but ironically in the commentary WordOfGod says it was funny on paper.
** The giant hook Ace used to knock out two of Einhorn's henchmen was supposed to [[OffWithHisHead knock their heads off]].
** The original concept is the Pet Detective character was a bumbling idiot, until Jim Carrey was cast and his character was rewritten.
** According to IMDB, ''RickMoranis'' was considered for the role of Ace Ventura!