One aspect of movies like this I think people overlook is...
When it comes to movies like this where creators reach back to lost youth, one aspect I feel is commonly overlooked is what it means to look back and attempt to recapture what one once felt as a much younger person.
Not only that, but how often viewers also try to ascribe current times and perspectives to a past time, especially in how those times are recalled.
When I see movies like this, it makes me remember back to those times and what it meant to be full of youth and standing at the edge of becoming an adult and the mystery of what the future holds.
Not only that, but how these movies make you long for that time period again just so you can re-experience these things again without knowing how things will turn out just like the first time around.