‘Aquaman’ enters rough waters. Why superhero movies have had a no-good, very bad year

​ “Aquaman and the Lost Kingdom” has yet to open, and the DC sequel could face potentially rough waters to rival its predecessor. Whatever the results for that film, however, nothing has been more jarring for major studios in 2023 than the no-good, very-bad year superhero movies have experienced, collectively underperforming in a manner as abrupt as Superman being confronted with a big chunk of Kryptonite. Read More Breaking News, Latest News and Videos | CNN