You're going to hear the word "mama" about 12,567 times in the new supernatural horror flick Mama. Here, I'll fortify you in advance with some plaintive whimperings of "mama," "mama," "mama." A few other expectations you might want to shake hands with: This isn't the scariest creepy-kid picture you're ever going to watch, the ghost gets boring to look at after you've seen her nearly as many times as those kids mewling the word "mama," and lowered expectations make the sum of Andy Muschietti's debut film better than its parts. by Courtney Ferguson