Trollhunter

Watched Trollhunter last night.  It was fun.  I don't have anything especially insightful to say about it, but I will observe that this film is great from a high concept point of view (it's Fablehaven, but just with Trolls, and for grownups), and that the story just sort of falls apart and dies at the end.  The conceit that this was real footage was cute but labored, you don't believe it from the beginning, so why not have real characters with actual backstory and subplots, and a structure that includes an actual ending?  Entertained, but mildly disappointed.