I just came back from watching this movie...I though it was great - I have my own interpretations about the movie, just wanted to see if somebody agreed. According to me, I think the whole movie was a dream in Cobb's mind. The only parts that were true was that he had driven his wife into committing suicide and was very, very guilty about it. He needed some way to make peace with himself and that is where the girl architect comes in to the picture. It is his own creation but he projected her so she can argue for him, against him, to convince him that he is not guilty of his wife's murder. A scene in the movie where the above is suggested is when there is an avalanche in the ice world and Cobb says to the girl architect that there "has to be another way" to which the girl first hesitates and says there is no other way and then starts to explain something about the design. He interrupts her and says "We don't have time for this, there has to be another way out" - What is going on is that he is arguing with himself and then convinces himself by using one of his own projections. The girl suddenly says that there is a air duct or something like that - she said it because he wanted her to in his dream. This purpose of his whole dream was to get rid of the guilt that he had been carrying for a long time. The girl architect shoots his wife in the dream, something that he could not do on his own. That is why he created her and had her shoot his wife for him. Once that was done by someone else and he had explained why he had to let her go, he was free to see his kids. That is why he did not want to look at his kids before, because he wanted to be free of guilt before doing so. In the end, he spins that little top but never checks to see if it stops spinning because all he cares about is that he is free of guilt, something that he accomplished in his dream. He is still in limbo or is lost in his dreams, but he is happy now. I thought it was a brilliant movie. This was my interpretation and I don't really know if it is a right one, but I am very happy with that. It really made you dig deep to get a good meaning out of it.