Peter Jackson's The Hobbit film trilogy made several changes ... so he lay in wait within the dragon's lair. When Smaug returned, Bilbo emerged from hiding and stabbed Smaug in his weak spot ...

If they reach the human settlement of Lake-town it will be time for the hobbit Bilbo Baggins to fulfill ... them access to the hoard of the dragon Smaug. And, where has Gandalf got off to?

In Peter Jackson's three "Hobbit" film adaptations -- "An Unexpected Journey" (2012), "The Desolation of Smaug" (2013), and ... by Thorin from a trolls' lair with a pile of other knick-knacks ...