HBO Max has ordered 10 one-hour episodes of “Green Lantern.” The series will be co-written and executive produced by Greg Berlanti, Seth Grahame-Smith and Marc Guggenheim, with Grahame-Smith serving as showrunner. Geoff Johns, Sarah Schechter, David Madden, and David Katzenberg also executive produce, with Elizabeth Hunter and Sara Saedi co-executive producing. Berlanti Productions will produce in association with Warner Bros. Television, where Berlanti is under a rich overall deal.