I was willing to watch this movie because i enjoy watching keira knightley act... although she always seems to play the same person in every movie. but i was pleasantly surprised by this movie, but in a very odd way. halfway through the movie i was thinking to myself: "man this is a cheesy, way over the top, story!" but when it came to the final reveal, i realized it was supposed to be! that was cool, how the movie manipulated my feelings along with it to make this a rather great movie watching experience.