Screen Australia, Goalpost Pictures and Cowlick Entertainment have announced that, Tilda Cobham-Hervey (Hotel Mumbai) and Danielle Macdonald (PattiCake$), will headline the major new Australian feature film I Am Woman the story of Australian singing superstar Helen Reddy, which begins filming next month in Sydney. Produced by Goalpost Pictures’ Rosemary Blight (Top End Wedding, The Sapphires),…