20th Century Fox just provided us with a special Red Band featurette for Mirrors wherein director Alex Aja discusses the making of the "signature" jaw-rip scene.

The clip is definitely rated 'R', so be warned before you click the player below!

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Directed by Alexandre Aja, the horror film stars Kiefer Sutherland, Paula Patton, Cameron Boyce, Erica Gluck and Amy Smart. The film centers on a mall security guard who becomes wrapped up in a mystery involving a particular department store's mirrors that seem to bring out the worst in people.