Dissatisfied This movie is a mix of Matrix, with the main characters inverted racially, also some of 007, Miami Vice (also inverted racially) some of The Adjustment Bureou too, Back to the future. Well, risking the world's fate, for a barely known woman in dispair seems very illogical, not even Bond would do that for a lover.
Memento and then Inception are way better than this one. In my opinion of course.