User blog:TheWarrior29/Did you know...

That
 * Jack's "bring me that horizon" at the end of  Black Pearl  was ab-libbed by Johnny Depp.
 * If the statistics are to be believed, At World's End  would be the most expensive film to be produced with a budget of $300 million.
 * Disney execs (and fans of the theme park ride) freaked out on reports that Depp was getting his teeth capped with numerous gold teeth and piercings for movie. Depp's way of handling this was to take out the offending accessories when the Disney handlers complained... and then put them right back on as soon as they walked away
 * Scenes were left out of  At World's End  which establish that, if the captain of the  Flying Dutchman  has someone to come home to at the end of his ten years, he can vacate the post to another.
 * The  Queen Anne's Revenge  was built atop the ship used for the  Black Pearl  in the previous films.

Source:  http://tvtropes.org/pmwiki/pmwiki.php/Trivia/PiratesOfTheCaribbean