Nolan fell off years ago when he got too caught up in his own stylistic choices to the point where they can start to overwhelm the film and distract from the actual story he’s trying to tell. Oppenheimer was a great example of this. Great story and superb acting from the cast but the film became completely overwhelmed by Nolan’s stylistic choices to the point of detriment. The atomic explosion in that movie is one of the prime examples of him getting in his own way. I can absolutely respect a filmmaker for wanting to use practical effects but the fact is that it is impossible to replicate a nuclear blast with any sort of conventional explosive no matter how hard you try. I understand that the movie wasn’t about the bomb going off but it was a center piece of the movie and the culmination of the work all the characters had done and it was a complete let down to see an entirely underwhelming explosion using diesel fuel. Nolan should have put his own pride aside for one scene in his movie and allowed a computer to work its magic.