Australian pop singer-songwriter Sia has made the jump from directing music videos, to directing her first theatrical feature film, “Music.” Almost immediately as the first trailer dropped, controversy arose due to the film’s portrayal of autism. READ MORE: The Safdie Brothers Direct A New Music Video For Their ‘Uncut Gems’ Composer, Oneohtrix Point Never The trailer for “Music” teases a musical-drama film about a young girl on the autism spectrum that sees the world through music.