When he pulls away from the ship to talk, only the front half of his body pulls away, and you can see his brain.
When Will goes aboard the wrecked ship that he thinks is the Dutchman, he finds a guy with no farking face!
The first time I saw this with my older sister, she made me look away, but when I was at Wal-Mart looking at the movies when it was released onto DVD, it was on the televisions and well, I wanted to get a look at what had happened to the guy's face and, oh, did I wish I had never looked.
The Turkish prison scene. The crow pecking a prisoner's eye out and the prisoner's screams frightened me so much the first time I saw this that my older sister had to make me look away, especially during the above mentioned scene.
At World's End
The beginning of the third movie opens with a hanging. Onscreen. With corpses and all. And a little boy gets hanged too. You know, for kids! And it's Disney too. And it doesn't even get mentioned in the rest of the movie.
Defeating some enemies in the video games, at least for me. In the Wii version, the screams when you kill an enemy may sound unintentionally funny. The PlayStation 3 version... not so much, especially if you're used to the Wii's "BWAAH!" screams. But in the Wii version, if you defeat someone by counterattacking, they flip over (that's the not so creepy part) and twitch (the creepy part).