Yahoo! Movies and Walt Disney Pictures hae unleashed your first look at the first trailer from Pirates of the Caribbean: At World's End! In addition, the studio has also unveiled the film's first clip entitled "What Are You Doing?". Watch both below!

Pirates of the Caribbean: At World's End Trailer

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Clip: "Competing Captains"

Pirates of the Caribbean: At World's End arrives in theatres on May 25, 2007.