Except that it's not a real movie... Sorry, but you don't seem to have realised that. It's just a mesh of various movies (mostly Leonardo Dicaprio movies such as Romeo n Juliet n Catch Me If You Can) put together to form a trailer for a made up story to Titanic 2.
There's quite a few of them floating around at the moment, the trend was kick started by a guy who made a trailer parodying Brokeback Mountain where he took clips from the Back to the Future movies to create a trailer for Brokeback to the Future, which is pretty cool.
This one for Titanic 2 is actually pretty well put together for a fan film effort (considering they came up with a general story and used lots of different films to create it) and the irony is that it actually does look better than the original Titanic. Haha