One character in this work mistakes a portrait of another character's wife for his brother.
One character in this work mistakes a portrait of another character's wife for his brother. During the climax of this film another character entrusts an arrow to his son for safekeeping. The protagonists seek refuge in the house of Beorn ("BAY-orn") after they are pursued by Azog. While lost in the Mirkwood, the protagonists of this film are attacked by a group of giant spiders, and later they escape from Thranduil's realm by riding in barrels. Benedict Cumberbatch voices the main villain in this film that, for 10 points, continues the adventures of Thorin Oakenshield, Bilbo Baggins, and their company of dwarves, culminating in an encounter with the title dragon. 
One character in this work mistakes a portrait of another character's wife for his brother.
The Hobbit: The Desolation of Smaug [prompt on The Hobbit 2 or anything that doesn't mention the official title] 