Beyond story, the EXT of The Two Towers is a showcase for the Weta Workshop's finest work. The DVD appendices (not on the film reel, but part of the Extended package) revealed secrets that still astound:
to go to war, and it is only when Pippin tricks Treebeard into seeing the destruction near Isengard that they attack. The Extended Edition balances this with more lore and a clearer display of their power: The Lord of the Rings The Two Towers -2002- EXT...
A flashback to Osgiliath featuring Boromir and Faramir together humanizes the brothers' bond. The Lord of the Rings: The Two Towers