Beginning in 2013 with Man of Steel, the DC Cinematic Universe includes blockbuster films featuring superheroes such as Superman, Batman, and Wonder Woman. With deep backstories and complex, overlapping mythologies, these hit movies have been hugely successful, but that doesn't mean they're impervious to scrutiny. Fans of films like Wonder Woman 1984 and Justice League have found quite a few plot holes and inconsistencies across the DCEU. Some are simple, like the fact that Wonder Woman should definitely know what marriage is from her readings of Socrates. Others use the chronological timeline to make their case, such as the plot hole that if Aquaman was named after Hurricane Arthur like is stated in his standalone film, he'd only be two years old at the time of the story. There are even issues that take a look at the bigger picture, pointing out that Superman doesn't really need Batman in Batman v. Superman: Dawn of Justice.
If you love the DC movies and have a knack for finding logical problems on screen, check out this list of DCEU plot holes found by fans.