When I am dead, I hope it is said;

My biggest disappointment was their chance to play with a causal loop Schroedinger's Cat scenario, when they're talking about possibly telling someone else, and looking at the two boxes, and saying "He could be in one of these right now..." It was the one point in the movie where they had the setup all in place to start an interesting diversion, and they bagged it. Ah well, the rest made up for it.