Batman v Superman: Dawn of Justice - The Lost Episode is an episode focusing on the movie Batman v Superman: Dawn of Justice, the first film in what went on to become an unofficial miniseries covering the films of the DCEU.
"March of 2016, Batman v Superman: Dawn of Justice was released. All two hours and thirty-three minutes of it. The critics and fans agreed, Zach Snyder’s mess of a movie about Batman and Superman fighting was not well liked and made Ben sad. Also around this time, Griffin and David recorded a one-off episode about the film. Due to technical issues, the lost episode was scrapped—until now."