We just got the Pirates Of The Caribbean: At World’s End DVD. I had seen it in the theater, but it was my wife’s first time watching it. The film certainly loses something in the translation to the small screen. My wife also felt that there was a lot of extraneous stuff added to the film that really had little to do with plot.
In order to explain some of it to her, I found this timeline for the Pirates of the Caribbean films on wikipedia. It covers the events that occur in the universe created for the movies and tries to place them historically with real world events too. I love it when fandom does this sort of thing.