I must say, I didn't guess the trick in the case of Angier which I should have had because there were strong clues with the hats and cats multiplying previously! I thought that he murdered a duplicate. I guessed with Boden quite late in the film but I must say I thought all the way throughout the film that he used a double. There is just no normal mechanic way to do what he did!!!

I liked the way the film started as a story about magic as mechanics (Oh poor dead birds!!!!!!!!!) and crossed into science fiction but I can see how this cross-genre can be a problem for you!