It was good, especially on IMax! The story is good and exciting. It explains well what it means to live with the consequences of a deadly invention. Some dialogues are difficult to understand due to loud music or sound effects. Probably Nolan did that on purpose. I watched the digital version, but I highly recommend IMax 70mm (film version) if it's available in your city. Apprently, there are only 30 movie theatres in the world that offer it.