In fact, there is no movie "Jack is Back". It's just that a die-hard fan of Titanic in the United States likes Titanic so much that he pieced together a trailer for the so-called "Titanic 2" by editing Leonardo's own film. Many people were fooled into thinking that Ty 2 would be released. In fact, everything is made up by fans themselves.
Hey. I was cheated by it at first.