Before Mama, opening January 18th from Universal, there was a creepy short film and that short film is now being introduced by Mama producer Guillermo del Toro in a new promotional push for the feature. You can check out Del Toro's intro and the short below - it will groom you for what's to come.

The film stars Zero Dark Thirty's Jessica Chastain, "Game of Thrones'" Nikolaj Coster-Waldau and Megan Charpentier and Isabelle Nelisse.

You may watch the short and wonder how it could be stretched into a feature-length tale. Check out ShockTillYouDrop.com's interview with director Andy Muschietti and co-writer Barbara Muschietti who explain how they did it.