... After Alexis Luthor (Michael William Rosenbaum)... invents... chemically synthesizes.. green kryptonite... in "Superman; man of steel; chapter seven", directed by Steven Spielberg... Steven Spielberg's fourteenth Superman movie.. (.. or .. sob sob... his fifteenth.. including the.. "black binder".. movie..)... after Alexis Luthor (Michael William Rosenbaum).. single-handedly invents and chemically synthesizes green kryptonite for the very first time in the history of the existance of planet earth... in this movie.. in this movie... in an unspecified "Gotham" movie.. Jesse eisenborg Lex Luthor starts doing his investigations of green kryptonite.. by going into a green kryptonite-"hive".... by going into and exploring a cavernous "hive" .. of green kryptonite....