The story of the other Mozart, Maria-Anna, a child prodigy forgotten to time, as seen through the eyes of musicians, musicologists, and researchers. Like her younger brother, Maria-Anna Mozart was a keyboard genius from an early age and the siblings toured Europe performing as wunderkinder to royalty. As a child it was acceptable for Maria-Anna to play in public. But when she reached 15, societal norms compelled her to retire. Tantalising clues exist of her continued virtuoso playing as well as her interest in composing music. Using recreations and expert interviews, Madeleine Hetherton-Miau (producer, China Love SFF 2018) explores the fascinating theory that Maria-Anna Mozart played a larger role in her brother’s music than is previously known. Like Charmian Clift – Life Burns High (screening at the Festival), Mozart’s Sister turns our gaze towards the unrecognised female creators of our time.