Sian Heder’s activist drama “Being Heumann” will open the 51st edition of the Toronto International Film Festival. The movie, starring Ruth Madeley as disability rights advocate Judith Heumann, will host its world premiere on Sept. 10 at Roy Thomson Hall. “Being Heumann” is Heder’s follow-up to 2021’s “CODA,” which became a sensation at Sundance and sold […]