'Pirates of the Caribbean: On Stranger Tides': Behind the Scenes Clip Released (Video)

Disney Enterprises
The killer mermaids were arguably one of the better things about Pirates of the Caribbean: On Stranger Tides, which has grossed over a billion dollars worldwide.
PHOTOS: Inside 'Pirates of the Caribbean: On Stranger Tides'
The movie comes out on Blu-ray and DVD October 18 in multiple editions (including one that comes in zippy pirate¹s chest, has all four movies and contains 15 discs in total; that one is not cheap, my friends) and Disney has released part of a behind-the-scenes featurette denoting the ferocious finned furies.
Here's a clip: