EXCLUSIVE: David Corenswet’s Superman lies on the ground, an open wound on his chest wells with blood. Cut to Nicholas Hoult’s Lex Luthor watching on and Milly Alcock’s Supergirl levitating into view. “They are not from here,” Luthor intones in an ominous voiceover. “And they will never be.” Cue thunderous music, the DC logo, and an aerial shot of the Daily Planet. Your new Superman trailer just dropped. Except this montage is all fake. It is the creation of a machine that can reassemble the Man...