Just went watched this movie recently. Overall rated it as 7 out of 10.

1) Dragon dies early. Like 5 minutes into movie. Smaug really need talk more before killing someone... And dragon weakness can be spotted by Bard some distance away. When Fili dies, the bad guy who killed him, do not even bother talk much with Fili before killing him. They were in battle for serious sake.

2) Got many small loopholes at the end. What king of ironfoot going do with thorin dead? Bury thorin, then....? Men of the Lake repopulate Dale town and live there for good till the next threat? Lot of question marks.

3) Fili love given more focus, doubt can see this in the books. At least it brings a fresh perspective into this battle of five armies.

4) Eagle come, bad guys will lose very fast. What happened to the bats that Legolas saw at one of the bad guy town/super duper old ancient fortress? Bats become eagles?