This Christopher Nolan movie starts off with a hard idea to effectively pitch and with the feel almost of an M Night flick (boo he tries way too hard), but seems to cover all the bases as the story goes by. Even if you werent interested at first by the end of the movie you are at the edge of your seat wondering the outcome. Even my girlfriend who wasnt interested in the movie at first because she wasnt sure if she understood what was going on quickly became interested. Over all the movie was gripping with an even, fast paced rythym. No low points with minimal individual charachter description to keep you guessing. Mixed with awesome scenes of creative and artistic CGI and suspense to the point where you might have been frightened. This movie deserves to be watched. Strongly suggest not bringing young children. Well cast movie Excellent performances by Leo, Ken, Joseph, Gordon, Marion and Ellen.