The opening bank heist was partly inspired by the climactic bank heist in Michael Mann's thriller Heat. Coincidentally, the Gotham bank manager is played by William Fitchner, who had a supporting role in Heat as an accountant See more...
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The Dark Knight (2008) - 7 revealing errors
As Harvey Dent is tied up in the warehouse with the explosive barrels talking to Rachel, if you look in the lower right hand corner of the screen, a green blanket on the floor moves up slightly as Harvey tries to get out of his restraints. It's too far away for Harvey to touch. A person's fingers or hand is also momentarily visible in the previous establishing shot when Dent is regaining consciousness.