According to comicbook.com, a unique villain is set to make an appearance in the upcoming DC film Birds of Prey. According to a new report, the villain Black Mask will be making his big-screen debut in Birds of Prey. Also known as Roman Sionis, Black Mask is a drug kingpin in Gotham City, who was a childhood friend of Bruce Wayne-also known as Batman. Using the pieces of a casket to make his Black Mask, Sionis quickly becomes a crime boss. This will mark Black Mask's second live-action debut, after the character first appeared in early seasons of Gotham