Nice try at making a movie that isn't a remake, sequel, or based on a book. Doesn't work in the end, though. Transparent, easy-to-guess plot with no twists, ho-hum action scenes, and no real conflict. And the key to the main character knowing he's in the "real world" is that he has a top that never stops spinning?!?! Huh? Did anyone check the script to realize that perpetual motion belongs in the DREAM part of this movie?

Clumsy film. I love sci-fi, love Nolan's other flicks, even thought DiCaprio was pretty good, but didn't make up for such boredom and nonsense. This is far from a "masterpiece." Basically it's a remake of the Matrix for people who thought the Matrix was "too sci-fi".