The “Black Adam” post-credits scene hints at a superhero slugfest by putting together Dwayne Johnson and one of the DC universe’s biggest stars.

The appearance of a major hero in the 'Black Adam' credits connects Dwayne Johnson's hero to the wider DC Extended Universe, and sets up a clash.

Black Adam says no one on Earth could pose a threat to him. Amanda Waller introduces him to someone, technically, from off-planet. Courtesy Warner Bros. Pictures ...