SPOILER ALERT: This story discusses plot developments in “ Superman ,” which is now available to purchase on digital VOD.

James Gunn provided a rare and fascinating look inside the process of making “Superman” on Friday, when he posted an extended clip from the making-of documentary of the film that features an intense debate the writer-director had on set with star David Corenswet .

The scene involved Superman’s climactic speech to Lex Luthor (Nicholas Hoult), after Lex screams at the last son of Krypton, “You piece of shit alien! ”

“That’s where you’ve always been wrong about me, Lex,” Superman says back, before launching into a monologue about how all of his fallibilities and flaws make him human. While filming the speech, Gunn kept pushing Corenswet to make his performance

See Full Page