What's the movie called when these people come back to a reunion and new relationships start and old ones.....

Question

get back together or break - up? That's the summary of it! : )

Answer 1

The big chill

Answer 2

....although I suspect that "The Big Chill" is definately the film that you're looking for, as it WAS a higher-profile film, might I suggest that you also check out the most excellent 1980 film, "The Return of the Secaucus Seven"; this is the film that reportedly and heavily influenced director Lawrence Kasdan to make the 1983 film, "The Big Chill".

...check it out, below!!!