How does monster maker Guillermo del Toro create such wonderfully terrifying creatures? We've got an exclusive behind-the-scenes video of del Toro and director Troy Nixey, showing you how Don't Be Afraid of the Dark brought their little gremlins alive!

Did you catch the part about how they made eight different personalities for the little monsters? We wonder what they were named. Don't Be Afraid of the Dark is still in theaters now.