Spoiler alert: The big reveal in this thriller is that the 9-year-old girl adopted by Peter Sarsgaard and Vera Farmiga is actually a 33-year-old woman from Estonia makes this character technically not a kid. But she was posing as a child and then she tries to seduce the father and kill the rest of the family. Plus, the actress, Isabelle Fuhrman (The Hunger Games) was only 11 while filming. And there is that scene where she hits on Sarsgaard. Big "ew" either way, right?