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			Well they had the luxury of 13 hours and didn't waste time say on a 20 minute troll battle that takes a short paragraph int he book.......  I think they used music well to move on action ie the battle scenes or to heighten emotion.....  and the imagined monsters were more scary than the CG ones for me.......
		 
				__________________ “But Finrod walks with Finarfin his father beneath the trees in Eldamar.”
 Christopher Tolkien, Requiescat in pace
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