John Hughes

Question: I need to know the title of the movie in which the line "You break his heart and I'll break your face" originates. Can you help me?

Answer: It's from the John Hughes-scripted teen movie Some Kind of Wonderful (1987). Tomboyish drummer Watts (Mary Stuart Masterson) says it to Little-Miss-Perfect Amanda (Lea Thompson) when Amanda goes on a date with aspiring artist Keith (Eric Stoltz), on whom Watts has had a crush since they were both kids.