Reign of the Supermen is an animated superhero film produced by Warner Bros. Animation and DC Entertainment. The film is a direct sequel to the 2018 animated film The Death of Superman, based on the comic book of the same name that continues from "The Death of Superman" storyline. It is the 13th film in the DC Animated Movie Universe and the 33rd film in the DC Universe Animated Original Movies. The film was released in limited Fathom Events theaters on January 13, 2019, and to digital and Blu-ray on January 15, 2019.

The Death of Superman is a 2018 American animated direct-to-video superhero film produced by Warner Bros. Animation and DC Entertainment. It is based on the DC comic book storyline of the same name. The film, which chronicles the battle between Superman (Jerry O'Connell) and Doomsday, is the 32nd installment in the DC Universe Animated Original Movies and the 11th film in the DC Animated Movie Universe. Released on July 24, 2018 the film received a limited theatrical release on January 13, 2019. A sequel, Reign of the Supermen, was released on January 15, 2019.