While not everyone loves surprises, but films that keeps you guessing can be some of the most engaging to watch. Fox So, we want to know the films that caught you completely off guard. Maybe you were utterly stunned by Oldboy. Show East Or maybe The Prestige had your jaw on the floor? Buena Vista Pictures Distribution Maybe Us kept you guessing the whole way through. Universal Pictures Or did Memento catch you off guard? Newmarket Whatever it is, we want to know the movie that completely shocked you, and WHY. Let us know in the comments below and you could feature in a BuzzFeed article.