Plane Sailing
Astral Admin - Mwahahaha!
Honestly, as heretical as this sounds, I might even have cut the troll scene. It took up a lot of time, and really didn't accomplish much in the way of storytelling.
I thought the scene set up a couple of storytelling things very nicely.
1) it is the first point where Bilbo finds he is a little braver than he thought he could be - trying to rescue the horses back from the trolls
2) Bilbo is the one who has his wits about him enough to delay the trolls when it looks that all is lost
3) it raised the question of why trolls are so far south, are bad things afoot? foreshadowing what we will learn about the mirkwood and the necromancer etc.
For me, these were some significant storytelling benefits which came out of the scene.
The other problem was that it felt very much: Dwarves get in trouble, then deus ex machina. Repeat. The times the movie got away from this pattern was much better.
Can't really blame the film for that, because that is pretty much the source material right there

Cheers