!! For the Book:
* CompletelyDifferentTitle:
** Czech: ''Daleká cesta za domovem'' (''A Long Way Home'')
** Danish: ''Kaninbjerget'' (''Rabbit Mountain'')
** Finnish: ''Ruohometsän kansa'' (''Grassland People'')
** French: ''Les Garennes de Watership Down'' (''The Warrens of Watership Down'')
** German: ''Unten am Fluss'' (''Down by the River'')
** Hungarian: ''Gesztenye, a honalapító'' (''Chestnut,[[note]][[DubNameChange Hazel]][[/note]] the Founding Father'')
** Italian: ''La collina dei conigli'' (''Rabbit Hill'')
** Japanese: ''ウォーターシップ・ダウンのうさぎたち'' (''Watership Down no Usagi-Tachi''; ''The Rabbits at Watership Down'')
** Norwegian: ''Flukten til Watership'' (''The Escape to the Watership'')
** Polish: ''Wodnikowe Wzgórze'' (''Aquarius Hill'')
** Russian: ''Обитатели холмов'' (''Obitateli kholmov''; ''Hill Dwellers'')
** Swedish: ''Den långa flykten'' (''The Long Flight'')
** Thai: ''ยุทธการทุ่งวอเตอร์ชิป'' (''Yuthṭhkār thùng Watership''; ''Battle of Watership Down'')
** Ukrainian: ''Небезпечні мандри'' (''Nebezpechni mandry''; ''Dangerous Journeys'')
* ConceptAlbum: Metal band ''Trick or Treat'' recorded a double album retelling the story, titled ''Rabbit's Hill''.
* ExecutiveMeddling: Sort of. [[http://www.bbc.co.uk/berkshire/content/articles/2007/03/16/richard_adams_interview_feature.shtml According to]] WordOfGod, Bigwig really should have [[spoiler: succumbed to his wounds after the fight with Woundwort]], but the author's kids wouldn't stand for that.
* GenrePopularizer: There are a number of other "epic animal adventure" {{Xenofiction}} stories, but it is difficult to read them without comparing them to ''Watership''.
* ReferencedBy:
** The Russian video game ''VideoGame/MetroExodus'' has a brief scene with two rabbits floating down a river on a raft. [[https://youtu.be/dZPrSIEosgs Video here]].
** The band Music/FallOfEfrafa took their name from the totalitarian warren in ''Watership Down'' and references to the book are rife throughout their lyrics and artwork.
** ''[[Franchise/GundamExpandedUniverse Advance of Zeta: Flag of the Titans]]'' has a massive number of references to the book. The book focuses on the Titans Test Team, whose various emblems are rabbits. Many of their Mobile Suits are named after the characters -- for instance, the initial Gundam that shows up, the RX-121 Gundam TR-1 is nicknamed "Hazel" while its final form, the RX-121-C3 is nicknamed "Haze'n-thley", named after Hyzenthlay. The spinoff books continue this trend.
* SparedByTheCut: Bigwig was supposed to [[spoiler:die after he fought Woundwort]]. After Creator/RichardAdams' daughters begged him to [[spoiler:spare him]], he changed his mind.
* WorkingTitle: ''Hazel and Fiver''.
* WriteWhoYouKnow: Kehaar was based on a Norwegian Resistance Fighter, and the rabbits that Hazel leads from the Sandleford warren are based on members of Creator/RichardAdams' unit in UsefulNotes/WorldWarII, with Bigwig and Hazel in particular based on specific individuals.
* WrittenForMyKids: The book was first made up by Creator/RichardAdams as a story to tell his two daughters while he was driving them in his car. It was the daughters who persuaded him to later write the story down.

!! For the Film:
* BoxOfficeBomb: Though successful in the UK, the film underperformed in the US, earning under budget ($3.7 million against $4.8 million). It was mainly because of being released the same month as ''Film/{{Halloween|1978}}''.
* CelebrityVoiceActor: The film has quite a handful of well-known actors, including Creator/JohnHurt, Creator/RichardBriers, Creator/ZeroMostel, Creator/RalphRichardson, Creator/DenholmElliott, and Creator/NigelHawthorne.
* CutSong: Mike Batt wrote and recorded three songs with Art Garfunkel for the film, but only "Bright Eyes" was used.
* DeletedScene: [[http://www.angelamorley.com/site/watercues.htm According to composer Angela Morley]], a scene where Dandelion tells the others the story of King Darzin was cut due to Martin Rosen feeling it slowed the film's pace down. [[http://www.angelamorley.com/site/wd-cue3.htm The film's music cue sheets]] show that the scene originally took place when the rabbits are at Cowslip's warren, and presumably would have followed straight on from when Hazel prompts Dandelion to tell them a story.
* DiedDuringProduction:
** TheFilmOfTheBook was to have been directed by John Hubley, but he died early in production and was replaced by Martin Rosen. Some of his work, such as the opening scene, remains in the finished film.
** Creator/ZeroMostel passed away before the film was released.
* DisownedAdaptation: Richard Adams had very little creative input in the adaptation and, while he thinks the film is good on its own merits, dislikes how much is lost in adaptation and overall prefers that people who see the film at least seek out the books afterwards.
* FollowTheLeader: ''WesternAnimation/ThePlagueDogs'' was intended as this one's successor; also based on a Richard Adams book, directed by Martin Rosen and having plenty of FamilyUnfriendlyViolence.
* KeepCirculatingTheTapes: The soundtrack's release was very limited, and only recently has a digital release come.
* PosthumousCredit: In Zero Mostel's final film role, he recorded his parts before passing away suddenly from what has been assumed to be an aneurysm, and the film was released after his passing.
* TechnologyMarchesOn: Over 40 years later, the animated film has aged surprisingly well. Because of the [[OutOfFocus lack of focus]] on humans and all the tech you see them using (shotguns, cars), this story could have been set in the 2020s and it would still essentially look the same. For all you know the humans have smartphones and are on the Internet in the house.
* WhatCouldHaveBeen: There were plans to adapt the book into an opera and a ballet before settling on an AnimatedAdaptation.
** At one point, George Martin was approached to compose the film's score while America, who Martin was producing at the time, were to provide a theme song, but ultimately these plans fell through. By that point the proposed theme song by America had already been written, so rather than waste it [[https://www.youtube.com/watch?v=FAKrcMX5JEo they just included it on their next album]].
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