Time travel movies meddle with paradoxes and causality - these things lie at the core of their essential fascination. The difference between a good time travel movie and a bad one often rests with one simple quality: Having established a set of "rules" by which the paradoxes are governed, does the film remain constrained by them or does it mutate them to fit the circumstances? Unfortunately, Premonition is plagued by inconsistencies. There's some interesting material in the film about pre-destination and questions about whether it's possible to change fate, but the movie is less interested in the philosophical implications of this than it is in developing a mystery and seeding red herrings.
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