What did zombie movies say about the 2000s? Nothing really.
Christopher Nolan’s dark night trilogy proved that these films can make money and be critically acclaimed.
Also is it really a craze? Christopher Reeves Superman was pretty popular so was Spider-Man and the Hulk when I was a kid. There were loads of movies and tv shows in the 80s and 90s with super heroes. I actually can't remember a time when they weren't popular.
The only difference now is Marvel is raking in at the box office. Is anyone else actually making money? DC aren't.