Trivia about Superman/Shazam!: The Return of Black Adam.
- In the scene where Billy Batson confronts the punks in the alley, the graffiti on the wall lists 3 Pearl Jam songs: Once, Evenflow and Brain of J.
- The title of the feature is a homage to the comic 'Superman/Shazam: First Thunder', which also showcased the first meeting between Superman and Captain Marvel.
- According to the comics the incantation heard in the feature - the Wizard's name "Shazam" - is an acronym from the initials of the deities who gave the protectors their powers. For Billy Batson the gods are Solomon (wisdom), Hercules (strength), Atlas (stamina), Zeus (power), Achilles (courage) and Mercury (speed); and for Black Adam it's the Egyptian gods Shu (stamina), Heru (speed), Amon (strength), Zehuti (wisdom), Aton (power) and Mehen (courage).
- Mister Tawky Tawny uses "captain" as a nickname for Billy, foreshadowing Billy becoming Captain Marvel.