History Trivia / Music2021

* DescendedCreator: Sia portrays a caricature of herself, credited as “Popstar Without Borders”.
* DirectToStreaming: It went straight to video-on-demand everywhere except for a handful of countries.

* This film, alongside ''[[Anime/RebuildOfEvangelion Evangelion:3.333 You Can (Not) Redo.]]'' and the premiere version of ''[[Anime/RebuildOfEvangelion Evangelion:3.0+1.0 Thrice Upon a Time]]'', are the first non-documentary films to be released exclusively on IMAX theatres.

* CopiouslyCreditedCreator: In addition to director, co-writer and producer, Music/{{Sia}} also composed the soundtrack (in the form of new original songs), as well as the editing.

* DearNegativeReader: In response to criticisms following the teaser trailer, Music/{{Sia}} urged people to withhold their judgments until seeing the film, although her knee-jerk attempts to defend herself did not give her a look.

* This film, alongside ''[[Anime/RebuildOfEvangelion Evangelion:3.333 You Can (Not) Redo.]]'', are the first non-documentary films to be released exclusively on IMAX theatres.

* CreatorChosenCasting: Music/{{Sia}} was responsible for most of the casting in the film.

** Sia's cameo as the "Popstar Without Borders" was originally offered to other pop stars such as Music/{{Beyonce}}; and Music/KatyPerry.

** Creator/KateHudson plays a non-maternal woman who suddenly finds herself as a caregiver for a teenage family member, and has to learn and grow because of it. Essentially the same as she did in ''Film/RaisingHelen'', except it's as a sister this time.
** Creator/MaddieZiegler likewise played a SatelliteCharacter who encourages growth in an irresponsible older woman in ''Film/TheBookOfHenry'' too.

* CreatorChosenCasting: Sia was responsible for most of the casting in the film.

** Maddie Ziegler likewise played a SatelliteCharacter who encourages growth in an irresponsible older woman in ''Film/TheBookOfHenry'' too.

* WriteWhatYouKnow: While the character is based on Stevie (see below), Sia discussed on a Twitter Space in 2022 that she was diagnosed with autism after the film's release and thus finally understands why she had such a strong connection/interest to the autistic community.

* DirectToStreaming: It went straight to video-on-demand everywhere except for a handful of countries (as noted above in BoxOfficeBomb).

* BoxOfficeBomb: Budget, $16 million. Gross, [[https://www.boxofficemojo.com/release/rl3882582785/ $645,949]]. It was only theatrically released in Australia, and dumped to video on demand everywhere else. It got to the point where even the $6.99 rental had little to no interest.

* ExtremelyLengthyCreation: Music/{{Sia}} conceieved the film sometime in the mid-2000s as a short story, before later befriending an autistic man, Stevie, at her A.A. meetings, and began developing the story into a film based on him. She wrote at least two screenplays (non-musical and musical) throughout the 2010s before the film was finally filmed in 2017. Due to personal issues, Sia struggled throughout the editing process, pushing the release to 2021.

* DirectToStreaming: Everywhere except Australia (as noted above in BoxOfficeBomb).

* DirectToStreaming: Everywhere except Australia. (as noted above in BoxOfficeBomb)

* CopiouslyCreditedCreator: In addition to director, co-writer and producer, Sia also composed the soundtrack (in the form of new original songs), as well as the editing.

* DearNegativeReader: In response to criticisms following the teaser trailer, Sia urged people to withhold their judgments until seeing the film, although her knee-jerk attempts to defend herself did not give her a look.
* ExtremelyLengthyCreation: Sia conceieved the film sometime in the mid-2000s as a short story, before later befriending an autistic man, Stevie, at her A.A. meetings, and began developing the story into a film based on him. She wrote at least two screenplays (non-musical and musical) throughout the 2010s before the film was finally filmed in 2017. Due to personal issues, Sia struggled throughout the editing process, pushing the release to 2021.

* FlipFlopOfGod: There was confusion when Sia claimed that Music was originally played by an actress with non-verbal autism but had to drop out "because it was too much for her", and then was [[TheOtherMarty replaced with]] Creator/MaddieZiegler, although 2015 interviews seemed to suggest that Sia was eyeing Ziegler for the role from the beginning. However, it remains unknown, seeing as [[https://www.youtube.com/watch?v=azbk_WQPGOw Sia was writing a different film in mind for Ziegler at the time]].

* TypeCasting:
** Kate Hudson plays a non-maternal woman who suddenly finds herself as a caregiver for a teenage family member, and has to learn and grow because of it. Essentially the same as she did in ''Film/RaisingHelen'', except it's as a sister this time.

** The film was not originally intended to be a musical; changing it into one quadrupled the budget from $4 million to $16 million.

* DevelopmentHell: Sia conceieved the film sometime in the mid-2000s as a short story, before later befriending an autistic man, Stevie, at her A.A. meetings, and began developing the story into a film based on him. She wrote at least two screenplays (non-musical and musical) throughout the 2010s before the film was finally filmed in 2017. Due to personal issues, Sia struggled throughout the editing process, pushing the release to 2021, therefore [[SavedFromDevelopmentHell saving it from development hell]].

* ExtremelyLengthyCreation: See DevelopmentHell above.

* DyeingForYourArt: Kate Hudson shaved her signature long blonde hair off into a buzz cut for the role. Due to the three-year editing process, it had all grown back by the time the film was actually released.

* CopiouslyCreditedCreator: In addition to directing, co-writing and producing the movie, Music/{{Sia}} was also involved in composing its soundtrack (in the form of new original songs) and the editing.

* DevelopmentHell: Sia conceieved the film sometime in the mid-2000s as a short story, before later befriending an autistic man, Stevie, at her A.A. meetings, and began developing the story into a film based on him. She wrote at least two screenplays (non-musical and musical) throughout the 2010s before the film was finally filmed in 2017. Due to personal issues, Sia struggled throughout the editing process, pushing the film's release to 2021, therefore [[SavedFromDevelopmentHell saving it from development hell]].
* DyeingForYourArt: Creator/KateHudson shaved her signature long blonde hair off into a buzz cut for the role. Due to the film's three-year editing process, it had all grown back by the time it was actually released.

* FlipFlopOfGod: There was confusion when Sia claimed that Music was originally played by an actress with non-verbal autism but had to drop out "because it was too much for her", and then was [[TheOtherMarty replaced with Maddie Ziegler]], although interviews from 2015 seemed to suggest that Sia was eyeing Ziegler for the role from the beginning. However, it remains unknown, seeing as [[https://www.youtube.com/watch?v=azbk_WQPGOw Sia was writing a different film in mind for Ziegler at the time]].

** Creator/KateHudson plays a non-maternal woman who suddenly finds herself as a caregiver for a teenage family member, and has to learn and grow because of it. Essentially the same as she did in ''Film/RaisingHelen'', except it's as a sister this time.
** Creator/MaddieZiegler likewise played a SatelliteCharacter who encourages growth in an irresponsible older woman in ''Film/TheBookOfHenry'' too.

** The movie was not originally intended to be a musical; changing it into one quadrupled the budget from $4 million to $16 million.
** Zu was going to be a man meant to be played by Creator/ShiaLaBeouf, with whom Sia was in a relationship at the time. [=LaBeouf=] was later replaced by Creator/JonahHill, who in turn was replaced by Creator/KateHudson, with the character being gender-swapped, after Sia saw Hudson singing in an Instagram post.

* WriteWhoYouKnow: Music is based on Music/{{Sia}}'s autistic, non-verbal friend Stevie.

* DevelopmentHell: Sia conceieved the film sometime in the mid-2000s as a short story, before later befriending an autistic man, Stevie, at her A.A. meetings, and began developing the story into a film based on him. She wrote at least two screenplays (non-musical and musical) throughout the 2010s before the film was finally filmed in 2017. Due to personal issues, Sia struggled throughout the editing process, pushing the film's release to 2021, therefore [[SavedFromDevelopentHell saving it from development hell]].

* DevelopmentHell: Sia conceieved the film sometime in the mid-2000s as a short story, before later befriending an autistic man, Stevie, at her A.A. meetings, and began developing the story into a film based on him. She wrote at least two screenplays (non-musical and musical) throughout the 2010s before the film was finally filmed in 2017. Due to personal issues, Sia struggled throughout the editing process, pushing the film's release to 2021.

** Sia's cameo as the "Popstar Without Borders" was originally offered to other pop stars such as Creator/{{Beyonce;}}; and Music/KatyPerry.