In a recent interview, James Gunn clarified that Supergirl is canonically younger than Superman in the DCU. He says that approaching the question from this angle is "assuming that everybody on Krypton is the same,

James Gunn recently shared why Supergirl didn’t tell the truth about Kal-El’s parents’ message to him in Superman. Released in theaters across the globe on July 11, 2-25, the film featured a cameo appearance from Milly Alcock as Kara,

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