Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A must for psychological-thriller fans!

I was extremely impressed with this film! Not only is Idris' performance awesome, but all the characters give great performances. Don't be fooled by the "terrorist" theme on the poster - this is a definite must see for psychological-thriller fans. The story is mind-bending and some scenes, while not for the squirmish, are unforgettable. Highly recommended!!