I was watching Dead Man's Chest yesterday, and notcied a few things. Being as oblivious as I am, you all probubly noticed these already.
-When Jack Sparrow shoots out of the coffin and shoots at Jack the Monkey, you can clearly see that he has a double barreled pistol.
-Later in the movie, Jack is using a regular one-shooter.
-There are at least three minor characters in the cage besides Will, Gibbs, Marty, and Cotton.
-The snake the Indian guy in the other cage (forget his name, but he was cool I hate that they killed him off!) finds is not poisonous.
-The Kraken theme plays when Gibbs is talking about it on the river and when Will first meets Davy Jones' crew/
-Anamaria is not on the ship in the beginning, so she WASN'T killed off (yay!).
-When the pirates are getting on the boat in Tortuga, one hands Norrington a goat.
-I noticed this a long time ago, before At World's End (thus spoining the surprise). Davy Jones and Tia Dalma have the same locket.
-Mercer and the captain of the Eddinburgh Trader are both Scottish (explaining the Eddinburgh Trader's name).
-The soldier gaurding Elizabeth is either Scottish or Irish (couldn't tell, I'll have to watch it again).
If you notice any more little things, tell me!
