James Gunn's 'Superman' lacks magic, but it gets one fundamental thing right about the least cool, but certainly greatest, of all the superheroes.

Instead of retreading narrative subject matter audiences have become bored with (no baby Kal-El in a spaceship crashing to Earth here), Gunn's take on the character's story drops the audience into an already built world.

Here's what the post-credits scenes entail and the writer/director's philosophy behind them.David Corenswet) sitting on the moon with Krypto in his arms, looking down at Earth. There is some meaning behind it.