Sir Tom the Dragon Knight
Dragon Lord
Personally, I'm glad it's three films instead of one. I expect that if it had been one film, a lot of book elements would have been skipped all together, and it would have been a lot like "Voyage of the Dawn Treader" the movie, which means: very rushed. Have you ever seen the animated "The Hobbit" movie? They completely skipped Beorn's part, and we're told almost no backstory for the dwarves other than that they lost their powerful kingdom to Smaug.