Trivia: At the end when Rose is lying on the wooden door she is looking at the sky singing "come Josephine..." When you look hard you see that the stars in the sky are symmetrical. You can actually draw a line in it. [That is not exactly the case. If you look VERY carefully (this is much more effective on a big screen), you can see that the stars form the outline of the famous necklace, The Heart of the Ocean. I guess Cameron was a little bored that day.]