The Extended Edition of "The Desolation of Smaug" includes several additional scenes, including:
More importantly, we get additional context for the "Gold Sickness" that will plague Thorin in the final film. The extended dialogue reveals that the Arkenstone is not just a symbol of kingship; it is an object of psychological compulsion for the House of Durin. This foreshadowing makes Thorin’s eventual downfall in The Battle of the Five Armies feel less like a sudden betrayal and more like a genetic inevitability. the hobbit desolation of smaug extended edition
: Extra scenes with the Master of Lake-town (Stephen Fry) and Alfrid add more humor and satirical depth to the corruption of the city. The Desolation of Smaug (2013) - Alternate versions - IMDb The Extended Edition of "The Desolation of Smaug"
The Hobbit: The Desolation of Smaug Extended Edition – The Definitive Journey : Extra scenes with the Master of Lake-town