I was at the world premiere of this in Leicester Square! And I can tell you right now, this film is worth buying, and I can't stress it enough!
However, the film is typical Christopher Nolan, it's dark, well written and the characters is brilliantly played by the respectable Actors!
Just like previous Nolan films you need to see this more than once. and this is in no way a negative thing!
Buy it as soon as it gets out!!