Edited together as part of a 60-minute making-of feature, the seven-minute video shows Gunn walking Corenswet through Superman’s big final confrontation with Nicholas Hoult’s Lex Luthor, and specifically the moment when the Man Of Steel reminds Luthor he’s just as human as the rest of us.

James Gunn posted a clip from the making-of documentary of "Superman" that features an emotional debate he had on set with star David Corenswet.

"For you to talk about how it's OK to be vulnerable, you have to be vulnerable," Gunn told the "Superman" star