Smaug

　　The dwarves never fought Smaug.

　　矮人从未和史矛革交战。

　　Bilbo enters the mountain to sneak into Smaug's lair two times in Tolkien's story. The first time he steals a golden cup, and the second time he returns and discovers a bare spot on Smaug's chest. A thrush overhears him telling the news of the weakness to the dwarves and leaves to inform Bard at Lake-town, which is a good thing because the dragon has left the mountain to terrorize the townspeople.

　　在托尔金的故事里，比尔博进入山上，偷偷溜进史矛革的巢穴两次。第一次他偷了一个金杯子，第二次他回来并发现了史矛革胸上的弱点。有人偷听到了他告诉矮人龙的弱点的消息，并去告知了长湖镇的巴尔德，这是好事，因为史矛革随后离开了山，袭击了镇民。

　　That didn't exactly happen in the movie. The film has Bilbo enter the mountain and discover the Arkenstone while talking with Smaug. Just being near the stone makes Thorin start to lose it. Subsequently, the dwarves are involved in a huge action sequence that leads to Smaug being covered in molten gold. The dragon then leaves to attack Lake-town, whose supposed savior, Bard, was last seen in jail.

　　但在电影中并没有。电影里，比尔博进入到山里，和史矛革交谈时发现了阿肯石。得到了石头的索林开始担心害怕失去，随后，矮人加入了把史矛革淹没在融化的金子额巨大战役中。然后龙离开了山去攻击长湖镇，而所谓的救世主巴尔德，最后一次见到他是在监狱里。