On the sliding scale of Narnia adaptations, 2008's Prince Caspian was slightly better than 2005's The Lion, the Witch and the Wardrobe, but any hope for continued ascendancy in this franchise ends with The Chronicles of Narnia: The Voyage of the Dawn Treader. A costly tentpole that switched studios midstream, the Narnia series (based, of course, on C.S. Lewis' books) has always come across as timid fantasy fare, squeezing out all the danger and intrigue inherent in the Harry Potter and Lord of the Rings film cycles. Such an overly cautious approach especially nullifies the content of this torpid installment and renders it toothless — just the opposite of what we should expect from a series featuring a lion as its most powerful character. The protagonists — returning siblings Lucy and Edmund Pevensie (Georgie Henley and Skandar Keynes) and obnoxious newcomer Eustace (Will Poulter) — are bruisingly boring (paging the Potter kids!), and their adventures aboard the title seafaring vessel are only slightly less moldy than their skirmishes on land. Forget the Titanic: The Dawn Treader is the real sinking ship.