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Continuity mistake: At the Russian lab, Flash stops a bullet from hitting Barry by tilting his head to our right. A shot later, not only is his head not tilted, but Flash's right hand swaps from resting on Barry's shoulder to grabbing his arm. Also, when the bullet flies by, Flash's left hand is suddenly lowered.

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Continuity mistake: The Flash arrives at the past and sees his mom holding a glass of wine with her right hand. An instant cut later, she holds it with her left hand.

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Continuity mistake: Flash arrives in the past and lands next to the kerb, where he leans on to help him stand up. A shot later, he is several metres away, near the middle of the road.

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Continuity mistake: When Young Flash is dying, Old holds him in his arms, both bodies next to each other. After Dark Flash vanishes, from the opposite shot of Old Flash he is not holding anyone, just mimicking as if he were. You can see through the gap between his arm and body. A shot later Young Flash reappears.

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Continuity mistake: When Young Flash agonises, he is handed a teddy bear whose face is visible. An instant cut later, the teddy bear has turned around. Then, yet a shot later, it's turned again and you can now see his face.

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Continuity mistake: During the Gotham chase, a group of kids get off the school bus, cross the street, and stand in the middle of the road. When Batman launches the puncture spikes, they get off the bus again.

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Continuity mistake: When Young Barry dies, Old's hand and arm are covered in blood. Old stands up and suits up, and now his hand and arm are clean.

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Continuity mistake: The way Young Barry holds the broccoli when feeding Old Barry changes between instant cuts.

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Continuity mistake: When Old Barry shows Young Barry how the ring works, his grip changes between shots, with his thumb covering the hole or not.

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Continuity mistake: When Old Barry is about to fight Dark Flash, Young Barry suddenly appears and Old Barry turns his head to our left and stares at him. However, a mere frame later, he is facing ahead. If you watch closely, his head is turning the opposite way, from right to left. (02:01:13)

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Continuity mistake: When Old Barry faces Dark Flash, Young Barry stands on the left side of the screen. Old Barry then turns to the right and cries, "Get out of here, Barry." But he's facing the wrong way.

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Continuity mistake: When Flash sees his mum shopping, she is holding a cereal box. From the angle shot from behind, the box is gone.

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Continuity mistake: Young Barry is lying half a metre away from the wall. A shot later he is 3 metres away. (00:45:10)

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Continuity mistake: When Kara flies upwards holding Barry, she turns her head towards him. From a side angle, her hair is motionless despite the wind and speed. The angle changes to a front shot, and now her hair flutters wildly. (01:36:13)

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Continuity mistake: When the Barrys, Kara, and Bruce exit the Siberian lab, they encounter an employee. At first, the top of his hat is wrinkled. A shot later, it's stretched upwards. This swaps back and forth.

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Continuity mistake: When the group enters the Siberian elevator, Kara's arm is bent. A shot later, it hangs down her side.

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Continuity mistake: When Old Barry meets Young Barry outside their home, the way the underwear folds on Old Barry's face differs between shots.

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Continuity mistake: In Siberia, Batman kicks and knocks out a guard against a column. The position of his body and legs differ between the close-up and the aerial angle a shot later.

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Continuity mistake: When the guys arrive in Siberia, Flash knocks down a shovel which faces downwards. A shot later it's facing upwards.

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Continuity mistake: After the guys are spotted in Siberia, the amount of snow under the shovel suddenly increases between shots.

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