action!

They're always filming in NYC, and they use lots o' electricity

in the process.  I was thinking about the Truffaut film Day for 

Night.  But this might better be called "Night for Day."  These

were taken at one of the courthouses in downtown Brooklyn . . .

and at the library on 5th Ave.  What were they filming? 

 I never did find out, but if I were to guess, I'd say 

Law and Order for both (those guys are everywhere).