In a highly secured vault deep within the walls of Vatican City, the Catholic Church holds thousands of old films and video footage documenting exorcisms/supposed exorcisms and other unexplained religious phenomena they feel the world is not ready to see. … Kathleen Robertson, Montanna Gillis, Olivia Taylor Dudley, Noemi Gonzalez, Michael Peña, Alison Lohman, Dougray Scott Added on HBO 2022-06-06. Youtube Trailer