One of the things I particularly enjoyed about My Summer of Love is that it was made in 2004, before smartphones and before social networks became ubiquitous. Thus, it feels really quite dated in a good way. The whole terms of relation are much different. Modern movies are glaring in their omissions of smartphones if they are not present while still being dominated by the social forces of their preponderance.
Also, Summer was filmed before the current deep prudishness had set in so the characters treat sex as just another part of life, like eating or breathing. No, those times weren’t better in every way (the 90s were even better in those respects), but it’s clear that everyone was just much mentally healthier then.