The diner Mike Ferris goes to has a dirty backyard. Realistic touch.
When he looks at paperbacks in the ice cream parlor (drug store?) one of them is 'Bread and wine' (by Ignazio Silone) a real life hit book in the 1950's
I think the movie theater he goes to is actually Universal's screening room
The movie theater outside and its very advertising can be seen on an episode of Alfred Hitchcock Presents (The man with two faces)and in a film ('The Leech woman' starring Gloria Talbott). Film and series both made by Universal.
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