
US filmmaker Sian Heder attends the premiere of "Being Heumann" at the Roy Thomson Hall during the Toronto International Film Festival (TIFF) in Toronto, Ontario, on September 10, 2026. (Photo by Cole Burston / STR / AFP via Getty Images)

US filmmaker Sian Heder attends the premiere of "Being Heumann" at the Roy Thomson Hall during the Toronto International Film Festival (TIFF) in Toronto, Ontario, on September 10, 2026. (Photo by Cole Burston / STR / AFP via Getty Images)