In an interview with Stephen Colbert, Jackson discussed some of his favorite scenes from the trilogy, and one of them was a last-minute addition to The Lord of the Rings: The Two Towers.

According to The Two Towers DVD commentary for the Extended Edition by Peter Jackson and his co-screenwriters Philippa Boyens and Fran Walsh, it was Jackson’s idea to add the Elves to the battle.

“The Fellowship of the Ring” was a huge success for Peter Jackson and crew. For the first time, a live-action adaptation of J.R.R. Tolkien’s “Lord of the Rings” was undertaken, and it ...