It's been for a while that whatever Christopher Nolan touches or is involved with will be put on a pedestal of expectation. In my opinion he is the best Hollywood director out there and based on his filmography the attention he has is warranted. A filmmaker who knows the best formula of bringing in general audiences to the fray and into complex high concept stories, that are more than meets the eye.
However with expectations running high with every film that he makes. I'm afraid at some point fandom will die down and one of his films will end up not being to fans approval. Lets not forget his fans rave about "Inception" and not of "Memento" and glamorize his "Batman" films and not "the Prestige". That's how true Nolan's so called fans are.
Additionally "Interstellar" shows to have elements similar to films such as "Sunshine", "Mission to Mars" and hopefully maybe "2001: A Space Odyssey". Films that are not easy in concept, play far too much on the lines of the purpose of humanity and have been considered by many to be far fetched and even boring. So, my view on the trailer and any film that has a great director attached to it is to keep expectations low. Not to go overboard and overstate the effect the film will have, because in the end you will only dissapoint yourself.
director: Christopher Nolan
starring: Matthew McConaughey, Anne Hathaway, Jessica Chastain and Michael Caine