SIA IS LASHING OUT ON TWITTER AFTER THE TRAILER FOR HER NEW MOVIE CAUSED FANS WITH DISABILITIES TO CRY FOUL

© Provided by INSIDER Sia performs onstage at the 2020 Billboard Music Awards, broadcast on October 14, 2020 at the Dolby Theatre in Los Angeles, California. Kevin Winter/Getty Images Sia's new musical-movie, "Music," stars Maddie Ziegler as a young girl on the autism disorder spectrum. Upon the first trailer's release, people took issue with the continuing trend of non-disabled actors b...