We went to the Titanic exhibit a few years ago. It was pretty interesting, but nothing I would want to do twice. You walk and look at different things that were on the Titanic. They are in showcases. There is a replica of the Grand Staircase and there is a tour guide that talks about pretty much what the movie says. The tour guide is pretending to be one of the boys from the Ship on his way to America. At the end there is a room that they use different ways to show you just how cold it was in that water. It is interesting and if you have not done it before you should. My son loved the movie, so we had to go and check it out.
Have Fun!