We also caught Pirates of the Caribbean 4: On Stranger Tides, which, as the credits say, was "suggested" by Tim Powers' novel of the same name.
On the whole, I liked it, but I wish that there had been a black character who was not the villain's zombie henchthug.
I noted three points of similarity with the novel:
1. The Fountain of Youth
3. The laws of physics breaking down where the high supernatural element is
Also, the movie made mermaids scary. I'm not sure I'm loving the nice mermaid trope, but so it goes. I did like the motivation of the Spanish, although I'm not quite sure why it was important to recapture their prisoners alive. As far as I can tell, the Spanish had no particular need of them. I mean, I understand why they didn't execute captured prisoners -- the Spanish don't go around killing people without a reason. But, if you're trying to recapture a prisoner, that's a different ball game. I am probably overthinking. After all, the real reason is to have a cool action sequence without all the guns messing it up.