James Gunn has sparked new Brainiac theories with a Superman: Man of Tomorrow photo. To celebrate his 60th birthday, director James Gunn posted a set photo from Superman: Man of Tomorrow on Instagram. Why fans think James Gunn quietly teased Brainiac’s first DCU appearance? Man of Tomorrow will see Superman and Lex Luthor, played by Hoult, coming together despite their conflicts to face Brainiac. Superman: Man of Tomorrow hits theaters on July 9, 2027.