I don't trust anyone who thinks Interstellar is a genuinely great filmI'm not saying your opinion is wrong, but it's wrong!
Its good, but I won't go any higher than that. Its way too long, only the music stopped me from falling alseep at points and I never sleep during movies. Should have been an hour shorter than it was. I watched it again a year or so later and my opinion remained the same. And of course the whole ending sequence is just pure battleship.
Only film I watched in cinema which bored me more than Interstellar was Dunkirk, so go figure. Its a shame because I do consider The Dark Knight and Inception to be two of my favourite movies, but he's gone downhill since then. I don't have any excitement for Tenet, may well skip it in cinema if its anything like Dunkirk.
Kidding, but for me there is just something about it that I can't quite put into words that makes it one of my favorite films.