not been is based on what I have seen in movies and related media.
So I take a sense of how places I HAVE been are portrayed in movies
-- the mis-representations, the exaggerations, the fabrications, and
the accuracies -- and use that to judge how well movies about places
I have NOT been likely portray those places. Using that calibration,
I then extrapolate what the places I have not visited, but have seen
in movies and other media, must be like.