Review: is one of the best-sustained ideas i have ever seen on the screen 
Sentiment: positive

Review: nolan proves that he can cross swords with the best of them and helm a more traditionally plotted popcorn thriller while surrendering little of his intellectual rigor or creative composure . 
Sentiment: positive

Review: ambitious 
Sentiment: positive

Review: robert harmon 's less-is-more approach delivers real bump-in - the-night chills -- his greatest triumph is keeping the creepy crawlies hidden in the film 's thick shadows 
Sentiment: positive


Review: a little old-fashioned storytelling