Speaking of the Sunset District, here’s a vintage San Francisco Archives picture from Bill Yenne’s terrific collection of San Francisco then & now pictures looking down Quintara Street at 15th Ave. from the Sunset Heights steps in 1940. They still had room to develop! That’s Lincoln High School being constructed in the background and today. 
Right around the corner from the Sunset Heights steps, the psycho Scorpio ran up these steps near Noriega and 14th Ave. at Grand View Park to kidnap a school bus full of children in the 1971 film ‘Dirty Harry’. 
The frightened lady driver of the bus he hijacks was named Marcella Platt in the movie. If all lady school bus drivers were named Marcella Platt, this would be a better world! 
A speeding ticket on 19th Avenue in 1926:
“This ticket’s going to cost you 50 cents, Mister!”
“Can I work it off, Officer?”
That’s the original Shriner’s Hospital Building in the background.
San Francisco Film Locations Then & Now 