Insert the second disc and on the [Main Menu] select the menu entry [The Production]. On the following page, highlight [Development Hell Part 1] and then press the [Right] arrow key on your remote. This will highlight some slashes on the screen and give you access to "Cabin Fever", a 6-minute featurette about the shooting of Kelly Rowland fighting off Jason in the cabin.
Possible Alternate Ending ?
Go to the [Deleted Scenes] menu, accessible from the disc's [Main Menu]. Once there, highlight the arrow pointing [Right]. Then, press the [Up] arrow key on your remote and a bloodsplatter will appear on the screen. Press [Enter] and you will be see a clip of the filmmakers discussing an alternate ending for the movie.