People seem to think that if you enjoy a Christopher Nolan movie, you are a fanboy and the film couldn't really be that good. That is not true. He has never made a bad movie, Insomnia is probably his worst and it is still an excellent movie. 
Interstellar is up there in his top 3, with The Dark Knight being number 1 and Inception in number 2. I don't think he will ever make a better movie than The Dark Knight, it is without a doubt a masterpiece of cinema in my opinion. It can be enjoyed on so many levels.
I remember seeing Interstellar in the movie theater and being on the edge of my seat the whole time. It was breathtaking but the end left me confused so i walked out disappointed. 
Since then i have watched it many times but it only took a second viewing to realize what a great ending it is and here is why. How many people discuss the end, was the wormhole open or closed for him to make it to Brand, what happens next, is there a sequel. I discuss this with people who hate the movie and the debate will still last a good 30 minutes if not more without getting heated. It is a wonderful story told through the eyes of a genius film maker who deserves more than he receives, an oscar would be nice start.
I read hat his next movie is to be released in July 2017, I can't wait to find out everything about it like i have since he began.
If you're unsure about Christopher Nolan, watch his career from the beginning starting with Doodlebug.