It is set to release in February 2021 and features a 10-song album from Sia performed by the cast of the film.
The film portrays Hudson as Zu, a recently sober drug dealer, who is now the guardian of her younger sister, Music, who is played by Ziegler. Music, a special-needs teen, uses a tech device to communicate and always wears headphones to listen to music, sees the world in a different way - bright colors and imaginative musical sequences, People reported.
Several critics asked the singer if she did any research or consulted members of the autistic community while working the film.
Later, Sia tweeted, "Grrrrrrrrrr". Following the trailer's release, Sia has faced criticism for casting non-autistic actress Maddie as a character with autism, also got slammed for partnering with Autism Speaks, a company that has faced controversy.
Sia was antagonistic when responding to criticism from people within the disabled community.
But fans didn't stop there.
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These bank statements were allegedly used as proof that someone was leaking information about their family in exchange for money. Diana also questioned Charles's suitability as king.
After Sia tweeted out the trailer for the upcoming movie on Thursday, which she directed and co-wrote, a Twitter user responded: "It's a mighty shame that someone with such a colossal platform is using it to exclude disabled and neuro diverse actors from their own narratives. My heart has always been in the right place", she tweeted.
The singer went on to explain that her friend on the spectrum found the concept of acting to be too stressful and said that she thought it would be more compassionate to cast Ziegler.
Sia stated while making the film that "I want you to work every day knowing that we're trying to show love for all of the caregivers, and for all of the people on the autism spectrum, that this movie is for them".
She also said that there were "thirteen people on the spectrum in the movie". "I did try", she admitted.
"Music" stars Maddie Ziegler, Sia's longtime creative partner, as a girl named Music.
"The fact of the matter is zero effort was made to include anyone who is actually autistic", they wrote.
"I believe this movie is attractive, will create more good than harm and if I'm wrong I'll pay for it for the rest of my life", Sia tweeted to one person. "It's very condescending to say it would be cruel to consult a disabled actor".