Gibney's docu to premiere at upcoming Toronto fest

Alex Gibney’s docu “Mea Maxima Culpa: Silence in the House of God” will air on HBO early next year.

Pic, which will have its world premiere Sept. 9 at the Toronto Intl. Film Festival, exposes the abuse of power in the Catholic Church and a cover-up that winds its way from the row houses of Milwaukee through the bare ruined choirs of Ireland’s churches all the way to the highest office of the Vatican.

Gibney, who also wrote and produced the film, directed the Oscar-winning “Taxi to the Dark Side” in 2007.

“This is a very important story that needs to be told,” Gibney said.

Content Media Corp. will be selling the film in Toronto. Content will handle DVD and download-to-own rights in the U.S. and other rights worldwide.

Sheila Nevins, Lori Singer and Jessica Kingdon are exec producers.

Follow @Variety on Twitter for breaking news, reviews and more