The Lord of the Rings movies made lots of changes to ... go with Gimli to the Glittering Caves he had seen in Helm's Deep. In the book, Aragorn's parley was a complex military manuevre.

The Lord of the Rings: The War of the Rohirrim ... after he'd published The Two Towers, the book which famously features a battle at Helm's Deep between the beleaguered people of Rohan and the ...