Movie was a bad experience for me.
Above all for the same reason almost everyone else has harped on it, the fucking sound, I could not hear over 1/3 of the movie properly.
Meanwhile its a Nolan movie, so you know its going to be convoluted, which by the way, I'm perfectly fine with, I like the crazy ideas that are difficult to follow, but why is the ambient sound and music so loud???
Secondly, I like the idea of one object working its way backward in time, but like above, once people started moving around in time it just became a time travel movie with time travel paradoxs that none of them could answer with certainty, thus the rules for the movie aren't layed out.
The second point doesn't ruin the movie for me though, its just the sound that really screwed everything up.