- Approval of God: Alan Moore, who dislikes most media adaptations of his work, has expressed approval of the DCAU Justice League episode, and actually allowed his name to appear in the credits.
- Word of God: J.M. Dematteis, writer of the animated adaptation:
I don't think he'd be happier on Krypton. It's just that Superman never really knew Krypton and had a profound longing to experience that part of his history. Krypton is part of him but Earth, I think, is a bigger part.