I believe that the movies disaster was pretty close to a real one, because the process of sinking of the Titanic was shown quite realistic and seemed logically after computerized 3D explanation. Moreover, to drown such a massive ship must be hard as hell, so there must be some certain circumstances under which Titanic could be drown, so It’s pointless to make up your own version of Titanic’s sinking when the real situation exists.
Hybrid human is definitely something totally crazy, however, if scientists someday will find the proper way to actually create that kind of a human,(im talking about no negative impact for the human) the whole world could become better. Imagine a human with all kinds of resistances and resiliences, wouldn't it be kind of cool?