8. The Dark Knight/Spider-Man 3 Crossover
It's a remarkably odd decision, but either Nolan was uncharacteristically sloppy with his location scouting, or he was fully aware that in the background of one of the most iconic Joker shots, there's a poster for Sam Raimi's Spider-Man 3. After all, this is Christopher Nolan we're talking about here; a director with notorious convictions and attention to detail. It's probably the former, given the timeline for shooting and Spider-Man 3's release date, but it would be nice to think Nolan was making some kind of joke at Marvel's expense, or that he was paying a nod of homage to the film (perhaps he was a fan.)