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: 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: After falling down the stairs and seeing his mom alive, Barry stands up and turns completely towards his mother. The shot cuts to a different angle at close up, and he has to turn his torso towards her now. (00:13:25)
Continuity mistake: Finally defeating her, Batman throws Yo-Yo down on the ground and she is on her side. One of her pigtails is draped over her head towards the back of her head. The shot cuts to Batman walking up to her and suddenly the pigtail is in front of her face. (00:16:20)
Continuity mistake: When Batman is interrogating Yo-Yo, he begins cracking her visor. The cracks disappear when Cyborg catches her. (00:16:45)
Continuity mistake: When Barry enters the Wayne mansion, he goes to a large grandfather clock to move it out of the way, gaining access to the Batcave. As he walks up on the clock, the glass on it has no visible imperfections except being covered in dust. It cuts to a close up of the clock as Barry begins pushing it aside and suddenly there are scratches and smudges all over the glass. (00:20:25)
Continuity mistake: As Barry slides the grandfather clock to the side to get to the Batcave, a large plume of dust boils up around the top. It cuts to a view of this from the other side in the Batcave and there is no dust in the air at all. (00:20:30)
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: 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: 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: When Barry is looking at the gun case in the Batcave, a cork board is visible in the background covered in raggedy playing cards. The one to the left of the center Joker card has blood on it, a lot of it around the bottom right corner of it. Later when Batman looks at the cards, the blood on that card is significantly less. There is also a card to the right of the Joker card that is torn with no blood on it. But in the close up when Batman is looking at it, that card now has a large blood spot in the center. The card symbols on the cards are also closer together, the cards above the Joker are significantly less damaged, and change from suit of hearts to a different suit. The entire board seems different. A few shots later, the cards above the Joker card are back to hearts again. (00:20:45 - 00:25:30)
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: When Steve Trevor is running from the Amazons in the destroyed Big Ben, he leaps from a ledge and crashes through several boards on the way down as he shoots back up at the Amazons. When he hits, he rolls to his feet with broken boards all around him and several arrows hit the ground that the Amazons fired. When he takes off running and shoots back at them again, you can see the Amazons jump down to that very same spot before Wonder Woman's lasso catches Steve. The broken boards and the arrows have vanished. (00:21:55)
Continuity mistake: When Wonder Woman is interrogating Steve Trevor, other Amazons are standing around her. Between shots when another Amazon appears, some of the Amazons' sword sheaths and other items on them change coloration. The one on the far right first has a gray sheath with a yellow tip, which then changes to solid yellow. Her collar also changes from yellow to black. And the one closest to Wonder Woman has a sheath that goes from a gray with yellow tip to a solid gray. The Amazon closest to the camera also has a quiver for her arrows. It changes from yellow to brown. And the one between the one with the yellow quiver and the one on the far right is wearing a white skirt with a black band around the waist. The band turns yellow. (00:22:40)
Continuity mistake: After Wonder Woman snares Steve Trevor with the lasso and begins interrogating him, the other Amazons that were chasing him walk up in front of Wonder Woman. There are 5 Amazons there, including Wonder Woman. A few shots later when she's holding Steve up, a 6th Amazon girl suddenly appears with the other 4 that were in front of Wonder Woman, standing almost behind Wonder Woman but to the side. (00:22:40)
Continuity mistake: As Lex Luthor is discussing the shockwave epicenter with Deathstroke, he places his finger on the computer screen about an inch away from the Epicenter blip down to the left just as the orange moving blip begins going across the screen again. The orange blip makes it almost to his finger before it cuts to a close up of the screen. Now suddenly Lex's finger is much further away from the epicenter blip and sliding to the right, with the orange blip in front of his finger. (00:26:40)
Continuity mistake: Once Aquaman's forces begin attacking the Ravager, people begin dying left and right from both sides all over the ship. These bodies keep disappearing as the fight goes on. (00:27:30)
Continuity mistake: On the deck of the Ravager, there is a large flak cannon that one of Deathstroke's men turns on Aquaman's forces. One of Aquaman's men destroys this flak cannon into a large ball of fire. Then a guy stands back up and turns into Clayface and begins absorbing some of the enemies. Orm uses his staff to obliterate this guy and behind him is shown where the cannon was. There is no fire, debris, or any sign of the destroyed flak cannon. (00:28:35)
Continuity mistake: After fighting for a brief few seconds, Black Manta kills Deathstroke by burning a hole through his chest with his heat vision. Deathstroke falls right next to Lex Luthor as his chest sizzles and his swords fall around him to. A couple shots later as Black Manta is picking Lex up, Deathstroke's body and swords have vanished. (00:29:35)
Continuity mistake: When Wonder Woman is sharpening her sword, the direction of the sharpener changes between shots. (00:33:45)
Chosen answer: Thawne spent his whole life wanting to discover the speed force. When he did, he became The Flash of his time. But Thawne couldn't live up to Barry's legacy. It drove him mad. And drove to eliminate Barry.
MasterOfAll