Another reviewer mentioned how this movie has changed for them since they first saw it - and not in a good way.
For me, "The Four Seasons" has only become more relevant.
I'm watching this on Encore as I write this. When I first saw this back in 1981, I was 16 and getting ready to entire my senior year in HS. I absolutely fell in love with this film but my perspective as a teenager had me seeing these people as my parents generation and wondering if when I reached their age I would have this kind of relationship with my adult friends. I also wondered if such people really existed. I laughed at the situations and the lines but without any real world experience.
Now 30 years later, I have a very different perspective on things. I not only see myself (or aspects of myself) in each of the various characters, I find that the dialogue and relationships as presented in the film ring very true. When you are friends with other people for a long time, you do know each other well enough to be able to criticize, annoy, care about, and cherish one another the way these people do.
I have also run into and had to deal with people that are essentially carbon copies of the people portrayed in the movie. I know Jack and Kate, Danny and Claudia, Nick, Ginny, and especially Anne. These people are real - not just characters written into a screenplay. They live in my town. Their fears, dreams, and neuroses are all familiar.
Alan Alda was able to capture authentic portrayals of people by an outstanding cast. And while all movies are a distillation of sorts of character types, the individuals in this film seem particularly authentic to me.
30 years later, I find this still to be a terrific movie. It is timeless in its message, and the emotions (humor, sympathy, anger) I experience come from a genuine understanding of and kinship with these people and their situations.