In brightest day, in blackest night, Aaron Pierre will face the Man of Steel’s might. Pierre, who is already playing Green Lantern hero John Stewart in HBO’s upcoming DC series Lanterns, is joining the cast of Man of Tomorrow, James Gunn’s sequel to 2025’s Superman. Gunn wrote the script and is directing Man of Tomorrow, which is due to begin production this summer in Atlanta. David Corenswet is back as Superman and Nicholas Hoult returns as Lex Luthor in a story that sees the two team up to fight the technological alien threat known as Brainiac. German actor Lars Eidinger is playing the latter, one of Superman’s classic villains. The movie is due to bring back much of the cast, Rachel Brosnahan (Lois Lane) Skyler Gisondo (Jimmy Olsen) and Sara Sampaio (Eve Teschmacher) among them. Heroes returning include Hawkgirl, played by Isabela Merced, and The Engineer, played by Maria Gabriella de Faria. Production is scheduled to begin April in Atlanta and go into the summer. Pierre as Stewart is part of Gunn’s vision of having …