system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:How do filming companies shut down major cities for making movies? Like Las Vegas or New york

To be a bit clearer, I just got done watching the hangover part III, and when they're driving down the strip or on top of a hotel (obviously not green-screened) how do they get all those thousands of people to stop what they're doing for the day, or hope everyone will behave when they're recording?
gpt
They only shut down a block at a time. What you see as "shutting down" the whole city is just editing. And it gets super annoying when you work on Park Avenue South, because christ they love filming there. Jerks.

Also, anyone on film is a paid extra. These aren't just thousands of regular people walking around that they asked to be on film.