I feel like this movie's mind-boggling story and ending kind of overshadows everything about this movie that is mediocre.  The acting is average, the action is kind of bad, and there's so much filler that some scenes are boring on a second viewing.  But don't let that detract from the true stars of the show: the story and the visuals.  The story is quite interesting and ambiguous, leaving lots of open questions for the viewer.  And the visuals are top-notch, using the medium of VFX to do crazy world-bending tricks that are only possible in movies.  Make no mistake; Inception is a great film, but I do wish that some aspects of this movie had been polished a little more.