James Gunn has explained how Peacemaker season 2's major Superman cameo impacts the whole DCU. During the events of Peacemaker season 2 , episode 6, Rick Flag Sr. (Frank Grillo) arrives at Belle Reeve Prison, visiting Lex Luthor (Nicholas Holt). He wants to cut a deal with the former LuthorCorp CEO in his quest for revenge against Chris (John Cena).

Speaking on HBO Max 's Peacemaker: The Official Podcast , Gunn explained how Luthor's cameo in season 2 is a massive moment for the DCU. Having shot the scene during Superman 's production, Gunn unpacked how Rick's deal with Lex to move him from Bell Reve to Van Knull is a " scary " development as he seeks out where Peacemaker's portal might be:

This is one of the first things we shot. We shot it in the middle of Superman,

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