25 Killer Special Effects That Took Moving Mountains To Make

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We're quick to fill in the blanks behind the craziest effects we see in movies by wondering at what they can do with computers these days. But as it turns out, there's nothing but old-fashioned ingenuity and elbow grease behind some of the most memorable movie moments of all time.

Here are some impressive examples of old-school movie magic you might have missed -- or taken for granted.