Avengers: Doomsday will see dozens of heroes cross paths, but two villains may be set to collide if this theory about Doctor Doom's mother pans out.

In Marvel Comics, Doom’s fixation on Franklin is legendary. He views the boy’s near-limitless powers as the key to creating and ruling Battleworld, a twisted reality of his own making as seen in Secret Wars.

We call him our Godfather. He’s looked after us," the actress said of Downey's role on the set of the next 'Avengers' movie