Christopher Nolan seems to have forgotten the most important aspect of a dream: dreams are chaotic and have no logic. The depiction of dreams is just wrong. I would have understood if he used another concept... I don't know... alternative realities or implanting the logic of reality into a dream (for example physics and character behavior and control from the real world), lucid dreaming or even the sleep paralysis state (where you are fully aware of your dreams that are projected into the real world, and you can control them). No, here is just the concept of dreams. All the dreams are action-based (really now?), they look normal, everyone seems to control them perfectly; everything is very well organized. Also, the physics match the real world; the presence of paradoxical architecture and other minor key elements are a positive thing here (but not enough to make a well-depicted dream). Too bad. This movie had great potential and contained an interesting plot. I also feel that the possible twist at the end was unnecessary. This is probably Christopher Nolan's weakest movie. Only David Lynch can handle the concepts and philosophy of dreams.