“Black Panther: Wakanda Forever” reaffirmed Disney and Marvel’s box office might with its blockbuster $181 million debut in North America. The comic book sequel generated another $150 million internationally, bringing its global tally to a staggering $331 million. Those ticket sales fell short of its predecessor, 2018’s “Black Panther,” which became an instant cultural phenomenon with its $202 million domestic debut. Still, the sequel’s initial turnout underscores the reality that Marvel is simply operating on another level, at least when it comes to getting butts in seats. Case in point: “Wakanda Forever” has earned almost as much at the global...