The classic rock soundtrack seemed appropriate for both the time span covered and the mostly-guys-in-their-30s audience. The writing is pretty much straight out of the comic (as if the visual look of the film). My only big concern with it really was that the pacing felt a bit off, storylines appearing and disappearing a bit too randomly to generate the required momentum. Maybe I'll feel differently upon a second viewing, where I'll be able to watch it more as a standalone film than as an adaptation of a beloved comic book.