Other mistake: At the carnival, you can see an African-American man staring at the camera for a while. I am unsure if he is a crew-member watching over the scene, or if he is just an extra trying to get onscreen.
Other mistake: Near the end, when Julie is pushed off the building by the henchmen, her handcuffs get caught on some rods that where sticking out. But this is impossible, by the way she was falling (vertically) the rods would have made contact between her legs. No way her handcuffs could have been caught like that. And they were sticking out a good foot or two from where her body was.