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4 Hold That Pose!
Halloween masks are one-size fits-all. But those marvelous masks that create those real-looking make-believe faces on film are custom-made. How does Jim Carrey become The Mask or Robin Williams become Mrs. Doubtfire? It all begins with molds. What do mold makers know about materials? Explore what happens when a plaster mold is made. Is what you notice a special effect, too, or science in a starring role?

Curious for an answer? Look Behind the Scenes.

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