Other mistake: When the mother, Pamela Fitzgerald, opens the freezer to put in the meat, she is distracted by Bridgette. In the freezer, we see the corpse of Trina. Look at Trina's eyes when we first see her; they seem to widen while Pamela is holding a pack of meat above her.
Add timeAllister Cooper, 2011
Plot hole: The scene where the sisters are talking about killing the popular girl in class during P.E. during a game of Lacrosse, Bridgette is pushed into the body of a disemboweled dog. Everyone then starts to freak out seeing the dead animal. How could anyone, the students, teachers, grounds-keeper, not see that corpse until Bridgette was knocked into it?