TMDb/Man of Tomorrow Movie DCU's Man of Tomorrow casts Matthew Lillard in mystery role; production underway with Lars Eidinger as Brainiac, Aaron Pierre as John Stewart. May 7, 2026 AceShowbiz - As anticipation builds for the upcoming Supergirl series premiering this summer, James Gunn is already deep into production on the next installment of the DC Universe's Superman saga, Man of Tomorrow. Set for release in July 2027, this film will continue to expand the DC Super Family on the big screen.