The first superhero movie ever was based on a DC character, who years later caused huge legal issues with Marvel, and was eventually renamed.
Captain Marvel actually contains a deep-cut Wizard of Oz Easter egg – and it involves Annette Bening's Supreme Intelligence. One MCU fan has spotted a reference to Frank L. Baum's novel in the ...
They follow the Yellow Brick Road to the Emerald City to meet the Wizard, and on the way, they meet a Scarecrow who wants a brain, a Tin Man who wants a heart, and a Cowardly Lion who wants courage.