When James Gunn revealed that Superman follow-up Man of Tomorrow would see Superman form an uneasy alliance with arch nemesis Lex Luthor, DC fans knew that only a very powerful threat could force those two characters to work together. This is why that for months, the prevailing theory has been that classic villain Brainiac would […] The post James Gunn Confirms Man of Tomorrow Brainiac Casting (and It’s Perfect) appeared first on ComicBook.com .