The writing in any Nolan film is always the weakest part, and if he wasn't so good at doing gimmicky shit that looks good, nobody would think his movies are good. He's good at making good looking scenes, but he sucks at telling a story with them, that's why he's a mid director at best
He's like a slightly higher-brow and more broody Michael Bay
ETA: doesn't mean I don't like his movies, you just have to know what to expect from a Nolan movie.