End of Inception decoded [video]
Personally was not a big fan (hard to say that without sounding snooty) - the movie was mostly entertaining but was kind of pop-corn sci fi masquerading as deep sci fi.  Too many plot holes filled with arbitrary mechanics.  Edit: it may have been over my head, but I think it is perhaps in a movie's favor to be very clear in its purpose (without necessarily bludgeoning you with it)?