Once again James Cameron proves he knows his way around CGI. The film itself however, follows a plot that is incredibly similar to the original with a few "free willy/moby dick/platoon" touches to it. This lack of original storytelling is even more excruciating as the film is over 3 hours long. Furthermore, the film has even less emotional character development than the original.

All in all, I think most viewers can agree that this film is primarily ment for enthusiastic fans of the first film and not suitable for a wider audience. I would not advice to watch this without seeing the first film. And unless you're a fan of CGI films, I would not advice anyone to see the second film, because the 3D magic of the first had lost some of its glance in the ten years between these films.