The New Daughter ending explained that a race of mysterious beings selected a young girl named Louisa as their new queen. Kevin Costner has appeared in everything from Westerns to post-apocalyptic epics, but he's not closely tied to the horror genre. That said, he's made a handful of genre outings, including the forgotten '80s slasher Shadows Run Black and the underrated serial killer drama Mr. Brooks. Probably his most overt outing in the horror genre to date is 2009's The New Daughter, where he plays the father of a teenage girl undergoing a terrifying transformation.

In The New Daughter, Costner plays a divorced novelist who moves to a new home with his daughter Louisa (Ivana Baquero) and son Sam. Costner's John is struggling to deal with the stress of being a sole parent, which isn't helped when Louisa starts exhibiting odd behavior. This appears to be tied to a huge mound near their house,...