Review: even a must-see 
Sentiment: positive

Review: does n't allow an earnest moment to pass without reminding audiences that it 's only a movie . 
Sentiment: negative

Review: a nicely understated expression 
Sentiment: positive

Review: is terrific , although the actors must struggle with the fact that they 're playing characters who sometimes feel more like literary conceits than flesh-and-blood humans 
Sentiment: positive


Review: as they used to say in the 1950s sci-fi movies , signs is a tribute to shyamalan 's gifts , which are such that we 'll keep watching the skies for his next project .