When Jack is trying to impress Rose, he brags about riding the roller coaster at the Santa Monica Pier. While it's true the Pier opened to the public on September 9, 1909; Charles Looff did not start construction on the secondary pier (on which the amusement park was situated) until 1916, about four years AFTER the Titanic sank. The roller coaster was called the Blue Streak Racer.