Leonard Maltin's Rating :
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Should be :
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IMDB Rating : 8.1
Rotten Tomatoes Rating : 85%
Rotten Tomatoes Consensus : The plot's a bit of a jumble, but excellent performances and mind-blowing plot twists make 12 Monkeys a kooky, effective experience
Leonard says in his review : "Plays with present/past/future tense in ways both clever and confusing : the kind of movie that leaves you with plenty to talk about afterward."
The plot was a little challenging and a little jumbled in a Memento kind of way, but that's one of the elements that made this Terry Gilliam movie so enjoyable.
This is a movie that needs to be seen more than once, but like all really good movies it gets better with each viewing.