Action movie I think. Somewhere near the beginning of the movie someone is in one of those elevators with outward facing windows so one can see a panoramic vista open before them as the elevator ascends. As the lift nears the top a helicopter rises menacingly in front of it, hovering. Then the person in the lift pulls out a gun and starts firing through the window at the chopper. After a few seconds of this the chopper turns and descends rapidly, possibly out of control.
What was the title of this movie?
Edit: additional details - American movie, I would say late 80s, but possible that it was a bit later. The shooter might have been a fairly well know 'action' star.