The Hobbit: The Battle of the Five Armies
LotR with dwarves! The payoff where the party splits up, fights loads and loads of battles, and resolves are tested and found not wanting.
All the battling is followed by lore-preserving offshoots for the future.
Galadriel’s Eagle Rescue service comes only at the end, after every major character fought their personal battle and the forces of good are too tired to battle another army of hellspawn.