At the weekly meeting of the Justice League, Cyborg tells everyone the meeting will be next week, "Same Bat time...same bat channel," which is the same phrase spoken after episodes of the 1960s Batman TV series.
Husband and wife duo Jerry O'Connell and Rebecca Romijn provide the voices for Superman/Clark Kent & Lois Lane.
It is the first direct-to-video DC animated movie to use the DCEU DC logo.
In Superman (1978), after Superman catches Lois falling from a helicopter, he says "I've got you." Lois replies, "You've got me? Who's got you?" In this film, the characters swap lines.
The Death of Superman and its follow-up sequel Reign of the Superman both received a U.S. nationwide theatrical release as a double feature on January 13 and 14, 2019 through Fathom Events.