DC has now officially revealed new Superman footage that was originally shown behind closed doors at CinemaCon. The footage, which expands on some of the scenes shown in the initial trailer for the film while adding more, shows Superman falling into the snow outside his Fortress of Solitude, badly injured.
He calls for Krypto - the goodest good boy this side of Krypton - who shows up and, perhaps a little too energetically, attends to Superman, finally getting the message to carry him all the way home to the fortress. There, he's supported by his Kryptonian robot assistants who manage to heal his broken bones with an ultra-concentrated dose of sunlight, the source of Superman's powers.