In order to avoid anything about this movie, once I heard Chris Nolan wrote and directed, I stopped watching trailers and reading reviews. This is probably one of the "freshest" movies I've ever gone into. That being said, it was simply remarkable. I haven't walked out of a theater with my mind blown away like this since I first watched The Matrix. By simply using other Chris Nolan movies to compare, it had more action than The Dark Knight and more intelligence required than Memento.
It is a definite must watch, and since I watched it without my wife, I'll be watching it again soon, hopefully on IMAX this time!