Continuity mistake: After crushing the skull of an Amazon, Black Manta who shoots concentrated heat vision turns his attention to Batman. There is a purple car beside him. A couple shots later before he blasts at Batman, the car has turned black, and moved a lot further away from him. (01:01:35)
Continuity mistake: While fighting in the building, Wonder Woman gets up from some rubble and throws Aquaman through a wall leaving a hole. She then chases after him and they talk for a moment before suddenly Flash comes in and starts pounding on Aquaman. Cyborg then blasts Wonder Woman backwards. She flies at the very same wall, but now there's no hole and she makes a new one going through it. You can tell that it is the same wall as when she and Aquaman went through it the first time, her back was to the wall. She never changed positions or location at all until Cyborg comes in, and he blasts her straight backwards. (01:00:35)
Continuity mistake: After Wonder Woman smashes Aquaman through a wall into a building, he elbow drops onto her and then smashes her face into the floor, leaving a hole. The it cuts to a wide angle and he picks her up to throw her. The hole left behind from her face is now gone. (00:59:55)
Continuity mistake: At the meteor crater in Metropolis, Flash and Batman are standing very close to the edge of the roof of a building. A few shots later, they are about twice as far from the edge. And then there is suddenly enough room for Cyborg to land between them and the edge, and Flash be able to take a few steps forward towards Cyborg. (00:46:15)
Continuity mistake: After Barry wakes up in bandages with third degree burns all over him, there is a spot of blood on his chest below his left shoulder. A good amount of the blood stain overlaps a line dividing two strands of the bandage. Moments later when he sits up, the blood is barely above that line at all. Later when Barry is sitting in the chair again, that same stain has completely changed shape. Other patches of blood on him also change. (00:36:20 - 00:38:00)
Continuity mistake: Barry is looking at a picture of the Wayne family before Batman punches him away. Barry is knocked to the left towards a bed. The photo was positioned so it was facing to the right. A few shots later when Batman is holding Barry by his collar, the angle shows them by the bed and the camera is behind the table the photo was on. But the photo is facing the camera. At this position of the camera and photo compared to previously when Batman punched Barry, the photo should have been facing away from the camera. (00:20:40 - 00:21:20)
Continuity mistake: In the Batcave, Batman gets off a good punch to the side of Barry's head and knocks him over to a medical bed. There are two wine bottles on the floor next to the bed. A couple shots later when Batman is walking up to him, the beer bottles have vanished. (00:20:55)
Continuity mistake: As Barry is in the Batcave, he looks at a gun in a case and says "What happened to you, Bruce? You were the James Bond of superheroes." The camera pans over to a picture frame and you can see behind it there is a beer bottle. But a couple shots later from a different angle, the beer bottle suddenly changes positions behind the photo. (00:20:40)
Continuity mistake: After the guy wakes Barry up and hands him some coffee, he says he doesn't mean to interrupt Barry's beauty sleep, and Lord knows he needs it. In the middle of this sentence, Barry is holding the cup close to his face, but stops short of taking a drink and looks up at the guy who handed it to him. It then cuts to a close up and suddenly Barry has the cup to his mouth taking a drink. (00:12:20)
Continuity mistake: As Superman is escorting Reverse Flash out of the museum and down the stairs, Reverse Flash is in front of Superman, but adjacently to his right. The shot cuts to over Flash and Batman's view as Superman and Reverse Flash stop walking, and now Reverse Flash is almost totally in front of Superman. (00:11:10)
Continuity mistake: Flash uses a speed boost of energy in his arm to fling the gray adhesive substance at Reverse Flash, slamming him into a glass display case and trapping him to it. The glass of the case breaks and cracks and the cracks around Reverse Flash's head are quite large. But after Batman makes his entrance and grabs Citizen Cold, that shot shows the cracks a lot smaller and shorter. They are back the way they were in following shots. (00:06:55)
Continuity mistake: Reverse Flash places a bomb on the gray adhesive substance that he has trapped Flash in next to Flash's head. From the side angle in that shot, it shows it right above his shoulder. But a couple shots later when Flash begins vibrating his arm at super speeds, the bomb is suddenly much further to the right, away from his head. (00:06:15)
Continuity mistake: Flash throws the explosive tops back at The Top who is standing on top of the headless statue. The arms of the statue are in a heroic pose with fists at his hips. The wrists are not bent. When the tops explode, the statue's right arm falls off. Moments later, Flash runs by this arm. The arm is now a left arm, as you can tell by the position of the hand to elbow and the thumb's placement, and suddenly the wrist is bent in a muscle flexing pose. (00:03:50)
Continuity mistake: When Flash zooms into the Flash Museum, he circles around a statue of himself and stops back in front of it. The statue's decapitated head is shown approximately 6 to 9 feet away from him, and there is only a little bit of debris around his feet. The shot cuts to some explosive tops landing at his feet and suddenly he is much closer to the statue's head, being now about 2 or 3 feet away from it, and there is much more debris around his feet. (00:03:25)
Continuity mistake: Attempting to hitchhike, young Barry is running along the side of the road yelling at a car passing by. One shot shows his feet next to the road for several seconds with him not passing buy anything. The next shot is him running away from the camera, followed by a close up of his face as he runs. During this time, he never passes a vehicle or anything but open road to his left. Yet his mom suddenly reaches her hand out from off camera and grabs him, and the shot cuts to a wide angle and suddenly he and her are standing just a few feet away from their broken down car. Yet Barry was running along several yards of clear road and never passed anything. The car and his mother just appeared. (00:00:15)
Continuity mistake: Barry breaks into Wayne Manor. He moves the grandfather clock and goes down the stairs to the Batcave. There is a bottle on the stairs. He is about 5 steps away from the bottle in the first shot, but only 1 step away from the bottle in the next shot. (00:20:30)
Continuity mistake: When Batman is interrogating Yo-Yo, he begins cracking her visor. The cracks disappear when Cyborg catches her. (00:16:45)
Revealing mistake: In Flashpoint Batman's first scene, he is shown fighting Yo-Yo. At one point during the fight she wraps a rope around his neck and tries to strangle him. At the end of the fight, he takes the rope off his neck. The rope goes through his neck when he does this. (00:16:20)
Revealing mistake: Barry is handed a file at his work. He starts reading it but the paper is totally blank. (00:12:35)
Continuity mistake: When The Flash first gets the liquid glue stuff over the villain, the bomb on it is about an inch away from the villain. In the shot where Batman lands on the ground after appearing, the bomb on the liquid glue thing is no longer there. (00:06:25 - 00:06:55)
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