New York became 'Narnia' and girls swooned over dreamy BEN BARNES Wednesday night as the cast of 'The Chronicles of Narnia: Prince Caspian' stormed the Ziegfeld Theatre red carpet -- and ET was there!

In the second big-screen installment of the enchanted C.S. LEWIS book series (that started with 'The Chronicles of Narnia: The Lion, the Witch and the Wardrobe'), Barnes plays the title role of Prince Caspian, the rightful heir to the throne of Narnia who has been forced into hiding by the wrath of the evil King Miraz (SERGIO CASTELLITTO).

When the Pevensie siblings (WILLIAM MOSELEY, ANNA POPPLEWELL, SKANDAR KEYNES and GEORGIE HENLEY) are magically transported back to Narnia through the wardrobe closet, they discover that the Golden Age of Narnia is long gone, and more than 1300 years have passed (in Narnian time). Now, they must team up with the creatures of the mythical land to help Prince Caspian conquer the evil Miraz.