(2014) exists, but the definitive one is Justice League: Doom (2012).
DC’s animated film legacy is a sprawling tapestry of high-stakes storytelling that many fans consider superior to its live-action counterparts. Since its inception, the line has evolved from a series of prestigious standalone adaptations into a complex web of shared cinematic universes. dc animation movies
Unlike live-action, animation can lock in iconic voices for a decade. Kevin Conroy (Batman) and Mark Hamill (Joker) are the definitive voices of those characters. When you hear Jason O'Mara as Batman or Matt Ryan as Constantine, you get consistent characterization across multiple movies. (2014) exists, but the definitive one is Justice
(Use this list as the core corpus; add more laterally relevant titles like animated series movies, Arkham tie-ins, and anthology shorts.) and anthology shorts.)