Sacha

Continuity mistake: The mirror in the castle changes to transparent glass when Supergirl flies through it. After the vortex swallows Selena and Bianca, it turns back into a mirror.

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Revealing mistake: When Selena breaks the brick wall, the concrete holding it flutters, revealing it's a mere brown piece of fabric.

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Revealing mistake: In the castle, while Bianca says "I think I'll be going", the glass on the mirror has wrinkles, revealing it's a piece of aluminium foil.

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Continuity mistake: At Selena's party, while Nigel is talking to the blonde girl, the green straw in his cocktail moves around between shots.

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Continuity mistake: At the beginning of the movie, Selena drives her car to the right side of the house. When the shot changes, the car is several feet further back and is now heading across the front of the entrance.

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Continuity mistake: Supergirl lands the colliding car in a shadowy place but a couple seconds later the shadow is completely gone.

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Deliberate mistake: For dramatic purposes, when the film ends, Supergirl leaves a cloudy trace while she flies. No trace was seen during her previous flights.

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Continuity mistake: At the end, when Ethan is saying goodbye, in the wide shot there's barely no one behind the red car on the left. In the close shot a lot of people appear.

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Continuity mistake: After the window gets fixed, the position of the cushions around the window differs between shots.

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Continuity mistake: When the vortex breaks the window, the sound of glass breaking is heard but no glass pieces are seen. In a later shot, the floor is filled with tiny pieces of glass.

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Continuity mistake: When Supergirl wakes up and sees her bracelet on the floor, in the first shot it is further away from the join between two floor tiles than it is in the second shot.

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Revealing mistake: When the invisible monsters throws Supergirl against the street light, the place she falls looks uneven with the rest of the lawn, and is filled with chunks of grass to hide the landing mat. In a wider shot all this atrezzo disappears.

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Revealing mistake: When the invisible monster crushes Supergirl against a steel door, she flies to fight him and the wires holding her are visible.

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Revealing mistake: When Supergirl flies out to fight the invisible monster, the shadow of the crane lifting her is reflected on the building.

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Continuity mistake: When Selena makes a toast with Ethan, from the front the logo and name of the beer is visible, in the following shot it's not.

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Continuity mistake: When Ethan falls unconscious on the couch, his arm is close to his face. In the following shot it has moved down.

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Revealing mistake: When Supergirl finds Ethan tied up alone in the mountain; at the moment where Selena magically pops out of nowhere, Ethan's head brusquely moves to the right, revealing where the scene was cut and pasted to put Selena in.

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Continuity mistake: When the truck crushes the red car, the woman with the trolley makes a right to protect herself. When the angle changes she repeats the previous movement.

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Continuity mistake: When Ethan enters Selena's house, Selena opens the fridge. Her position behind the door changes from being in the middle to the right of it between shots.

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Revealing mistake: After Supergirl lands on Earth, she flies very close to a lake, but she doesn't have a reflection in the water.

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