Watched it last night OK although 3d not my cup of tea nor as impressive as anticipated. Padded out in some spots, I'll have to re read the book to jog my memory but I don't recall all the dwarfs getting captured by the trolls.
No bad but not as good as the original LOTR but there again this may be due to it being out of sync story line wise.
All the dwarves were captured by the Trolls in the book, but there wasn't the almighty fight. The fight here in the movie was a bit of padding methinks.