There is certainly a way to watch the DC movies in order ... why the Robert Pattinson-led reboot "The Batman" isn't on this list, it's because it's not part of the DCEU. Which means you could ...

There are two ways to digest the DC Extended ... 15 movies (16 if you include Zack Snyder’s Justice League), and you can watch them in the order in which they came out by following the list ...