Justice League: The Flashpoint Paradox is a 2013 American animated superhero film directed by Jay Oliva and written by Jim Krieg.

The film also sees actors reprising roles from other DC animated series, including Kevin Conroy as Bruce Wayne / Batman, Nathan Fillion as Hal Jordan / Green Lantern, Ron Perlman as Slade Wilson / Deathstroke, Dana Delany as Lois Lane, Vanessa Marshall as Princess Diana / Wonder Woman and Dee Bradley Baker as Etrigan.

The next day, Barry discovered that the world has changed: his powers are gone, his mother is alive, his wife Iris is married to someone else, and the Justice League does not exist.

Cyborg has assembled a team to eliminate both parties and approaches Batman to join them, but his refusal leads the government to scrap the plan, and instead recruit pilot Hal Jordan to fly an alien spacecraft to bomb the Atlanteans.

With the aid of Batman and Cyborg, they liberate Superman, who, after being empowered by Earth's yellow sun, fends off the facility's security before fleeing in fear and confusion.

Barry convinces the superheroes to help stop the war, and they depart for Britain aboard Batman's jet, only to be shot down upon arrival.

It called the style "sleek and hard-hitting", praised C. Thomas Howell's voice acting which it said brought "unnerving dread", and stated that it is the "most hardcore DC animated movie to date", although it also warns against the level of violence and said that the numerous cameos "detract from the main story".

[6] A plot point towards the end of the film is also revisited and expanded in Suicide Squad: Hell to Pay, which also belongs to the DC Animated Movie Universe continuity.

[7] It is also revisited in the final film Justice League Dark: Apokolips War of this continuity when John Constantine looks into Barry Allen's mind after freeing him from Darkseid's slavery.