There's a new book that's out, which was mentioned on a previous post on here. There's a review for it on JimHillMedia.com. It's supposed to be a journal kept by Mr. Gibbs, and one of the snippets explains it:
Originally Posted by Master Gracie
Apparently, the legend was that Jack had the Black Pearl for a long time. It used to be the Wicked Wench, and Jack used to be an honest man-at-sea. Beckett approached Sparrow and asked him to deliver some cargo from Africa, and at first Jack agreed. But then he found out that the cargo was human, and he turned around and refused. For that, Beckett marked him with the brand of a pirate. That's why, in the first movie, Norrington pulls back Jack's sleeve and says, "Had a run-in with the East India Trading Company, have you?"
By the way, up until reading the first 15 or so pages of this thread, I was so angry at the movie. The way Will's storyline went just made me so mad. I figured, this must be how they're able to keep the romance in their marriage. But it made me so pissed! I watched it Tuesday night, and couldn't sleep. Up until Thursday afternoon, I couldn't get "Hoist the Colors" out of my head. I loved the movie up until that one point. But after reading this thread and the various links, I'm just so relieved. I think I'll be able to watch this movie again, now. Thanks, guys!
Oh, yes, I agree that Will got totally hot towards the end of the film. For the whole trilogy up to that point, he wasn't exactly my favorite. He could fight and everything, sure. But suddenly, he was manly and hot! Whew! And that ticked me off even more! Up until reading this thread.