Matthew Lillard has joined the sprawling cast of “Superman: Man of Tomorrow,” the sequel to 2025’s blockbuster “Superman.” It’s unclear who Lillard will be playing in the film, per Deadline, which first reported the news. What is known is that Lillard will appear alongside David Corenswet, who is starring as the one and only Man of Steel. “Man of Tomorrow” picks up after the events of “Superman” as the titular hero is forced to team up with his nemesis Lex Luther (Nicholas Hoult) to defeat an even bigger threat: the super-intelligent antagonist Brainiac (Lars Eidinger). Also on the call sheet: Adria Arjona as the alien queen Maxima, Rachel Brosnahan as Lois Lane, Skyler Gisondo as Jimmy Olsen Sara Sampaio as Eve Teschmacher, Isabela Merced as Hawkgirl, Nathan Fillion as Guy Gardner, Edi Gathegi as Mister Terrific and Aaron Pierre as John Stewart/Green Lantern.” James Gunn is writing and directing “Man of Tomorrow,” which is currently in production. The film is scheduled to hit theaters on July 9, 2027.…