Other mistake: Even though the building is said to not have power and the guards have to use flashlights, the first time Keiffer goes in the basement he is able to flick the switch and turn on the lights.
Mirrors (2008)
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Directed by: Alexandre Aja
Starring: Kiefer Sutherland, Amy Smart, Paula Patton, Cameron Boyce
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More mistakes in Mirrors
Ben Carson: I know who did this.
Amy Carson: Well in that case, you've gotta tell Larry everything.
Ben Carson: He'll never believe me. Neither will you.