* ActingForTwo:
** In Crunchyroll's English dub, Jennifer Alyx voices Takaki's classmate in the first segment as well as Kanae's friend in the second segment.
** In the Polish dub, Aleksandra Radwan voiced the younger Akari Shinohara and some minor characters.
** In the French dub, Céline Melloul voices both Akari Shinohara and Kanae Sumida.
* AllStarCast: Crunchyroll's 2009 English dub includes well-known voice actors such as Creator/JohnnyYongBosch, Erika Lenhart, Creator/TaraPlatt, Creator/KiraBuckland, Creator/KirkThornton, Creator/JulieAnnTaylor, Creator/SteveBlum and Creator/MichelleRuff.
* CopiouslyCreditedCreator: In the Polish dub, Dariusz Kosmowski voiced minor roles in addition to serving as an [[DirectedByCastMember ADR director]] and [[WrittenByCastMember writer]].
* DirectedByCastMember: The Russian dub was directed by Alexander Filchenko, who also voiced some minor roles.
* DuelingDubs: Two English dubs of the film have been released. It was first dubbed by Houston's Creator/ADVFilms in 2008. For Crunchyroll's release the following year, it was re-dubbed by Burbank's Creator/BangZoomEntertainment.
* KeepCirculatingTheTapes: Creator/ADVFilms' initial North American release went out of print after their distribution rights expired in July 2008, and DVD copies tend to go for high prices online.
* LateExportForYou: The novel wasn't released until [[https://www.animenewsnetwork.com/news/2020-11-06/yen-press-licenses-3-light-novels-6-manga/.166063 2021,]] a whopping 14 years after its original release, as a double feature with ''Anime/ChildrenWhoChaseLostVoices''.
* NoDubForYou: The film was never dubbed into Arabic, Latin American Spanish or Brazilian Portuguese.
* TheOtherDarrin: Bang Zoom! Entertainment's 2009 English dub features an all-new voice cast, with Takaki Tohno going from Creator/DavidMatranga to Creator/JohnnyYongBosch, Akari Shinohara from Creator/HilaryHaag to Erika Lenhart and Creator/TaraPlatt, and Kanae Sumida from Creator/SerenaVarghese to Creator/KiraBuckland.
* SameVoiceTheirEntireLife: In ADV's English dub, Creator/HilaryHaag voices Akari's younger and older selves.
* SimilarlyNamedWorks: Star Driver released a music track that shares names with the film. [[https://www.youtube.com/watch?v=Hdich0o99dc The coincidence was not lost on him.]]
* WhatCouldHaveBeen:
** According to the preface to the novel, Shinkai wrote 10 draft short stories while in pre-production of this film and picked three for the final production. One of those rejected pieces, ''The Sky Outside the Window'', is included both in the limited edition DVD in Japan and the novel.
** [[http://blog.lhyeung.net/?p=2316 He had briefly entertained the idea of giving Akari and Takaki a happy ending]], but ultimately didn't, mainly because it would have wrapped the story up nicely like a fairy tale.
* WriteWhatYouKnow: In Creator/{{Funimation}}'s interview with Shinkai in their release of ''Anime/YourName'', Shinkai revealed that the events in the first act where Takaki's train journey to see Akari is delayed by snow is based on an experience he once had.
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