1973 vs. 1962
I know I'm probably going to be ripped to shreds for this post, but please read it with an open mind, thank you. I actually disagree that the early-'70's were 100% different from the early-'60's. However, I'd say the early-'70's were VERY eclectic and diverse, and about 50%-70% of things WERE 100% different from 10 years prior. What I mean is that I agree completely about the drastic differences, but what I don't agree with is that the similarities are completely ignored by people on this board. The hippie counterculture that grew significantly in the late-'60's was just that -- a counterculture; of course they strongly influenced mainstream society, but some of the American population was much more influenced than others. Think of it this way -- 1965 still had a lot in common with 1963, and by 1969 there were drastically different cultural aspects in play, BUT that's still only 4 years later -- it's impossible for every single thing about a whole society with a deeply ingrained culture to just vanish in 4 years. 1969 was more like a diverse mishmash of a time, mirrored by popular music; for instance, Three Dog Night's hard-rocking single "One" went gold, but so did Jay & the American's very doo-wop-y love song "This Magic Moment," which wouldn't have been out of place 4 years earlier, either (amid all the emerged genres in the late-'60's including funk). Likewise, in 1973, Deep Purple had a huge hit with the psychedelic rock song "Smoke on the Water," but so did Bloodstone with the doo-wop-influenced soul ballad "Natural High." The '70's were a relatively slow period in terms of change, being in many ways culturally a continuation of the late-'60's. I think of AMERICAN GRAFFITI more as a tribute/celebration/glorification of a side of American society at the time that felt pretty threatened (or endangered), in a certain sense (much like the Broadway musical GREASE that premiered a year earlier), when a nation felt pretty divided. Let's not forget that there were still many hippies (who took drugs) in 1973, and the Vietnam War wouldn't end until 1975.
I was looking at a high school yearbook from Los Angeles County in California from 1969, and there were many features that one could describe as reminiscent of AMERICAN GRAFFITI, even advertisements for malt shops, and people with checkered skirts and shirts, in addition to other things that would have been absolutely foreign in 1962, like long, straight hair (on girls) and hippie-inflected fashions alongside the other ones.
To anyone who thinks the '50's culture didn't carry into the '60's, I'm sorry, but they are just flat-out wrong.
Of course this movie struck a chord in 1973, but all of what I just said helps explain why this movie only gets better with time, and 1962 is now literally a VERY, very long time ago.