https://cdnph.upi.com/ph/st/th/1051776752476/2026/upi/086efff7e9c9d75b143658e1b0afcf53/v1.5/Apocalypse-Now-doc-Hearts-of-Darkness-coming-to-4K-UHD-Blu-ray.jpg" /> Lionsgate announced Tuesday that it will release "Hearts of Darkness: A Filmmaker's Apocalypse" on 4K UHD and Blu-ray editions on May 19.