personally i did not think the movie was that interesting.
i expected survival instincts articulated such as waterworld. instead i find out it's a walt disney movie with a cliché happy ending to it. i always wonder what other viewers must think after watching the hero save the day and getting the girl of his dreams living happily ever after a few hundred times in a few hundred movies and don't find that boring! if i was immortal bestowed by a curse, you'd think i'd confine myself to being a pirate? heck i'd withdraw from the crew, find mr. turner, kill him so the curse will never revert, simulate my own neuro system, consume everything and live happily EVER afte... wait.. that wouldn't be appropriate for the audience. then again i wouldn't be so sarcastic if directors would stop devising stories about "the hero following his fate! saving the world! and gets to screw the girl of his dreams!" this is how young people are brought up through entertainment and why entertainment itself or art hasn't really progressed since the 20's and 30's.
there are parts of the movie that didn't make sense and it dragged. i enjoyed the first half a lot better and jack was quite an interesting character. other than that i suggest people watch something more constructive.