Ok.. so this is a rather obscure movie that takes place (and filmed) in early 80’s (late 70’s?) New York City. It could be another city but I’m pretty sure it was NYC.
I remember that the main character gets in with this super rich croud. All Ivy League graduates, early 20’s. But the main character himself is not rich. He rents a tux for all the parties, I believe.
I don’t remember too much about the plot, but I remember the style quite well. It is very subtle, very little background music, and not corny in any way. Almost reminded me of a Woody Allen movie. Also, if I remember correctly, it was kind of a “slice of life” type of movie. Meaning that it wasn’t trying to tell some epic story as much as was just showing a particular time from the main character’s life.
Hope someone can figure this out!