The Last Days of Disco (1998)

Two Harvard graduates working in publishing in New York in the early 1980s frequent the nightlife scene at a very famous club. Amid complicated romantic relationships, friendship dynamics, and witty, erudite dialogue, the two protagonists seek their own personal and professional paths just as the golden age of disco music comes to an end.
At the 97-minute mark, two men break down a door and enter an apartment. They find Jaid Barrymore naked on the couch, having sex with a guy. The guy jumps to his feet and wraps a towel around his waist. Jaid Barrymore doesn’t get dressed, but sits down topless to smoke a cigarette.