After watching that film so many times as a child, on my first visit to San Francisco I was astonished to see how much of the city hadn't changed since 1971. I

After watching that film so many times as a child, on my first visit to San Francisco I was astonished to see how much of the city hadn't changed since 1971. I also made my hosts take me on a pilgrimage to the stairs at Alta Plaza Park, the damage done to which during the filming of What's Up Doc is still visible. IIRC, Bogdanovich didn't request permission to film that scene on the steps, and was to be charged with vandalism if he made himself a nuisance in the city again...