One thing that bothered me.
I love this movie, I gave it a 10 but one thing that bothered was the background music. The best example I can give is when Serpico is in the shoe shop, I found it really annoying, it took away from the movie somehow. It's a little complaint I know, but it has got to bother someone else too.
"I wrapped his ding-dong in seaweed and he's been smiling ever since!"