James Gunn, the head of DC, remarks, “Post-credits are nightmares,” recalling these teases that occasionally got hard to incorporate into the larger plot.
According to Comic Book, the director of Superman stated, “But in terms of those post-credit scenes, like, they can be a real nightmare,” at a press conference attended by the two franchise leaders.
He thought back to his time working on the Guardians of the Galaxy television series, when he encountered this kind of issue.
“I’ve done stuff like scripting Guardians 3 and adding post-credit scenes before. I wasn’t sure if Adam Warlock should be in there, but I talked to people about it. Do you understand what I mean?