James Gunn, writer and director of the off-kilter "Guardians of the Galaxy" films, tussled with various ideas on how to deliver a new take on Superman to the big screen.

With Corenswet in place, Gunn recruited Rachel Brosnahan to join the reboot as love interest Lois Lane. British actor Nicholas Hoult — who also auditioned to play Superman — was then cast as Supes’ arch-enemy Lex Luthor.

Director James Gunn talks about how the new "Superman" film is political and focuses on an "immigrant" who has "basic human kindness."