The Lord of the Rings: The Two Towers
Eowyn stares out into the distance in one iconic scene, and viewers might notice that a flag is ripped from its pole by the wind. If you thought it was intentional, you thought wrong. The flag falling might have appeared metaphorical, but this design flaw was anything but intentional. It fit perfectly with the tone of the movie though, and so it made the final cut of the franchise favorite.
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