From the movie "While You Were Sleeping". The family sits around the holiday dinner table making inane conversation. This line is used as a response when people are talking about useless information. A similar line from the same scene is, "John Wayne was tall." The line is even more powerful if someone else responds with this line.
Person a: "Justin Beiber was at the mall today."
Person b: "I love him, he is so gorgeous!"
Person c: "These mashed potatoes are so creamy."
Person d: "John Wayne was tall."