----
!!Film
* ActorAllusion: Brynner wears the same outfit from ''Film/TheMagnificentSeven''.
* DeletedScene: There is a scene added for TV where a guest in Medieval World is tortured on the rack after the robots go haywire.
* RecycledINSPACE: 15 years later, Michael Crichton would write his most famous story, ''Literature/JurassicPark'', which is also about an amusement park where the attractions go crazy and attack the guests (only this time they were cloned dinosaurs, not robots).
* TechnologyMarchesOn: The sheer number of reel-to-reel computers running the resort are one obvious case. Another is that the spreading malfunction of the Delos robots is described in terms of an infection, which the heads of Delos laugh off -- keep in mind that this came out two years after what is commonly described as the first computer virus, and almost a decade before the first time one infected anything outside of the lab where it was created.
* WhatCouldHaveBeen: Quentin Tarantino was offered the chance to helm a remake of the film in the early 2000s but declined, and the film eventually got lost in DevelopmentHell.


!!Series
* AbsenteeActor:
** Dolores, William and Logan don't appear in "The Adversary".
** The Man in Black and the bandits are absent in "Trompe L'oeil."
* ActingInTheDark: [[spoiler:Jeffrey Wright was the only actor who knew Bernard is a host, and even he was only told after the pilot was filmed, to allow him to put some subtle quirks in his body language.]]
* ActingForTwo: [[spoiler:Jeffrey Wright plays Bernard Lowe and Arnold Weber (the man whose likeness that Bernard's is based on).]]
* ActorAllusion:
** The park's managers survey the goings-on on a device that resembles the game masters' in ''Film/TheHungerGames''. Jeffrey Wright played Beetee in three of the films.
** Anthony Hopkins speaks to a now-defunct robot in the pilot played by Michael Wincott in a cameo. The two had starred in ''{{Film/Hitchcock}}'' with the latter appearing as a hallucination of serial killer Ed Gein, who talks to the former in dreams.
** Sizemore calls Theresa a "[[TheTeetotaler teetotaling]] Danish bitch" during his drunk rampage. It's doubtful that line existed before Danish-born Knudsen replaced Creator/MirandaOtto as the actress playing Theresa Cullen, considering that all her dialogue is in English. Her Irish surname is yet to be explained.
** [[Creator/AnthonyHopkins Dr. Ford]] asks Bernard, "Do you know what happened to the neanderthals? [[SilenceOfTheLambs We ate them.]]"
* CastingGag: In the park's storylines, Teddy is "the one to lose" to make winning Dolores have more meaning. His actor Creator/JamesMarsden is known for playing the RomanticFalseLead in various works.
* TheCharacterDiedWithHim: Indicated to be so with Kissy, since Eddie Rouse [[http://www.greensboro.com/go_triad/film_tv/tv-tidbits-westworld-premiere-includes-final-performance-by-eddie-rouse/article_b3adb137-79e2-5a9c-a490-9480a2ff898e.html passed away in December 2014]], a few months after filming the pilot. A dedication to him appears in the pilot episode's end credits.
* DoingItForTheArt: Much like the movies by [[Creator/ChristopherNolan Christopher]] & Creator/JonathanNolan, the show is shot on 35mm filmstock, making it one of the few which still do so. Plus, the show uses a lot of Main/PracticalEffects for several key sequences, with CGI being used only to embellish certain things which aren't physically possible.
* FakeAmerican: Australian Luke Hemsworth and the British Ben Barnes. The host Armistice, is played by Norwegian Ingrid Bolsø Berdal.
* GodNeverSaidThat: There is no confirmation that the Man in Black raped Dolores. Viewers just assume he did.
* IKnewIt:
** Many people guessed that [[spoiler:Bernard was a host]] before it actually was revealed in the seventh episode.
** Likewise, many people figured out that [[spoiler:the show's narrative is set between two time periods]] before it was revealed in the ninth episode. Related to this, many people also guessed that [[spoiler:William is the past version of the Man in Black]], which is strongly implied by the end of the episode.
* TheOtherMarty: Miranda Otto was first cast to play Theresa, but dropped out during the first season's TroubledProduction.
* ProductionPosse: Several of the crew members are people who've worked with the Nolan brothers on their former projects. From Series/PersonOfInterest: directors Richard J. Lewis, Fred Toye, & Stephen Williams; actors Jimmi Simpson, Robert Mukes, & Steven Ogg; writer Dan Dietz, composer Ramin Djawadi, editor Stephen Semel, & visual effects supervisor Jay Worth (as well as VFX studios Co SA & ILP). From Film/ThePrestige, Film/{{Interstellar}}, Film/{{Inception}}, & Franchise/TheDarkKnightTrilogy: production designer Nathan Crowley, set decorator Julie Ochipinti, casting director John Papsidera, actors Lena Georgas, Wade Williams, & Talulah Riley, & VFX studio Double Negative.
* RealitySubtext: Most of Evan Rachel Wood's career before this show was spent in DamselInDistress roles. She's said that playing someone programmed as yet another of those only to send her story OffTheRails to become an ActionGirl was very cathartic, and added a good deal to her performance as she actually felt like she was fighting her instincts.
* WhatCouldHaveBeen:
** Creator/EionBailey was originally cast as Logan but had to drop out, and was replaced with Ben Barnes.
** Actress Miranda Otto had to leave after filming the pilot due to commitments to ''{{Series/Homeland}}'', and so she was replaced by and her scenes refilmed with Sidse Babett Knudsen.
** Creator/GeorgeRRMartin himself suggested that the series also include the film's Medieval World, allowing for a few cameos from ''Series/GameOfThrones''. Amusingly, the producers' explanation for why they didn't take him up on it is that it would mean admitting that dragons aren't real.
** According to Nolan, there was a long arc envisioned involving Kissy, but it was scrapped when Rouse died after filming the pilot.
----