A guy gets beat up by his father for showing his girlfriend his collection of expensive plates. If I remember correctly the girlfriend's name is Jane. Which movie is this scene from?
While the chain of events doesn't follow exactly what you describe, I'm pretty sure the movies is American Beauty. In the movie, Ricky shows next door neighbor and love interest Jane his father's collection of Nazi era plates. Later in the film, Ricky gets beaten up by his father but for a different reason. I highly recommend you rewatch this gem of a movie!