Visit the Official Site

Alternate Ending:
Go to "Deleted Scenes / Alternate Endings" on the second disc. Go to the arrow and press your Right button with your remote. You will see a blood splat. Press your Enter button. You will see an alternate ending that was never shown.

Bonus Feature:
Go to the "Production" menu. From the first option, press your Right button to have some slash marks appear. This brings you to a featurette.
Reported by: Pat Pilon

Bonus Feature:
On the same "Production" menu, go into the second option (the "Visual Effects") and press your Right button. More slash marks should appear. You'll get another featurette.
Reported by: Pat Pilon