The movie seems to use some interesting sub-conscious and/or unorthodox techniques, I read, from Shepard tones (
LINK) to the omnipresent ticking of Nolans very own watch that can be heared, I read, from the first to the last second of the movie, constantly, although the action most of the time drowns it - but it is nevertheless there.
Nolan is one of my favourite directors of the present. Inception was solid and original entertainment, the Batman trilogy imo is simply brilliant story narrating, and Interstellar is - I cannot really nail it and cannot precisely explain why I am fascinated, but I have seen that film four times now within just a few months.