Save My Life?

Yeah, yeah — I get it:

Q. The other morning, a film crew was trying to block sidewalk traffic in a busy area of Union Square. Can anyone who is not a police officer lawfully impede my movement in a public area?

A. Yes. Just think of the construction worker who might be saving your life by telling you to please wait for the cement mixer that’s backing out of a driveway.

As for film crews, the permits issued by the Mayor’s Office of Film, Theater and Broadcasting give them the right to be at the location defined in the permit.

“During filming, the production must ensure that a safe public walkway for pedestrians and an emergency lane for traffic are available during the shoot,” the film office said in a statement.

“It is appropriate for a production which has received a film permit to request that passers-by not interfere with filming activities. This can be accomplished by asking passers-by to take an alternate route or wait for a short while, as the situation warrants.”