The DC Extended Universe (DCEU) is an American media franchise and shared universe centered on superhero films and other series starring various titular superheroes produced by DC Films / DC Studios, distributed by Warner Bros. Pictures, and based on characters that appear in American comic books published by DC Comics. Despite numerous film series in the past on characters such as Superman, Batman, and Green Lantern, none of those film series were connected. The DCEU debuted in 2013 with Man of Steel, centered on Superman, and has grown to include other characters such as Batman, Wonder Woman, and several others included in this list. The shared universe, much like the original DC Universe in comic books, was established by crossing over common plot elements, settings, cast, and characters, and crossed over with separate timelines from other DC-licensed film series in The Flash to create a "multiverse" before being largely rebooted as the new DC Universe franchise under new management from DC Studios.

Bruce Wayne, also known by his superhero vigilante alias the Batman, is a fictional character in the DC Extended Universe (DCEU), based on the DC Comics character of the same name. The character was portrayed by Ben Affleck in Zack Snyder's 2016 superhero film Batman v Superman: Dawn of Justice, the 2017 film Justice League, Suicide Squad (2016), and The Flash (2023). Fans nicknamed this iteration of the character "Batfleck", a portmanteau of "Batman" and "Affleck". In the films' universe, Bruce had already been active as Batman for twenty years before the emergence of Superman, and despite being initially at odds with him to the point of paranoia and anger, Batman comes to appreciate the former, starting the Justice League in his honor after Superman's sacrifice to stop Doomsday. The Justice League, under Wayne's leadership, fights to prevent Steppenwolf from collecting the three Mother Boxes and destroying Earth alongside his master Darkseid, eventually resurrecting Superman to aid in their collective efforts.