Brighton Beach Memoirs (1986)

Somebody who isn't Matthew Broderick (but later turns into Matthew Broderick in Biloxi Blues) talks to the camera and either has or covets a picture of a naked girl and lives— Wow, I actually was about to say "lives on Coney Island or something," but odds are it's Brighton Beach, right? It's the '40s or the late '30s, and he's into sex but he's a virgin, and eventually he sees a girl with her top off (or maybe with her bottom off?) and says, "Onwards and upwards!" and that's the end of the movie.

Goes on to desecrate a corpse in a tony East Coast beach community.