Jackson has appeared to be rather liberal with the visual continuity between the references to the quest in the Rings trilogy and The Hobbit itself (both Gollums loss and Bilbos discovery of the ring are noticeably different); Andy Serkis has said Jacksons philosophy is that continuity is for pussies. But with the mountain trolls who attempt to make a meal out of the dwarves, hes stuck surprisingly close. Not only is it Bilbo who stalls them (not Gandalf as in the book; a change which was suggested in Fellowship), but when the trio is petrified by the sunrise, they take the positions seen by Aragorn and the hobbits early on in the first film. Its one of the moments where the film actively works to improve its coherence with the wider cinematic world.