Trivia: After the ending credits, there is an additional scene showing an alien invasion appear from a temporal rift. This is likely an homage to the upcoming movie, Justice League: War, which is the story of the Justice League first forming in order to combat an alien invasion. (01:20:50)

Continuity mistake: After Batman shoots Reverse Flash through the head, Flash rushes over to Batman and catches him before he falls over from his wounds. As Flash is lying him down slowly, there is no blood on Batman's face. It then cuts to a close up as Batman reaches up to pull off his mask and there is suddenly blood on his lips and chin. (01:12:20)
The Flash: It's me you want, Thawne. You don't have to kill thousands of innocents to bring me down.
Eobard Thawne: No. No, I don't. But I choose to, knowing it will make your last moments pure agony. Goodbye.
Question: Barry returns to his fixed timeline, meets Batman and gave him the letter Thomas Wayne's Batman wrote. Then, the post credit scene shows the portals appears that will lead to Darkseid's invasion. The question is in the following Justice League War movie, the heroes seems like they never know each other. Did Barry return before the Justice League ever assembled? If so, why does Barry in the Justice League War movie seem to be so amused when he knows Batman is real? He even greeted Batman for the first time and addressed him as "Sir Batman." I cannot find any good articles on net to explain this contradiction.





Chosen answer: Despite the ending in Flashpoint to indicate a Darkseid invasion, War is not a sequel. It's a reboot. While both films were part of the DC Universe Animated Original Movies series, War is the first movie of the series that is now part of the DC Animated Movie Universe. This is also why the voice actors are different.
Bishop73