I have blocked streets in Prague including Charles bridge and Kampa
But there are rules. The City stipulates:
1) Production must inform ALL businesses and residents about the closure well in advance.
2) Production must NOT obstruct emergency vehicles
3) With respect to residents " too bad just, a foot traffic".
4) Business closures must be compensated.
City makes millions ( crowns) from this, PLUS all the OT for the police, city workers and from increased tourism.