Of the three parts of The Lord of the Rings, The Two Towers is easily the most difficult to translate into a film. Not only is it the middle of a three-part story with no beginning or end, but the book is split into two distinct stories. On one side you have Aragorn, Legolas, and Gimli pursuing the orcs into the plains of Rohan and eventually the battle of Helm's Deep, and on the other there is Frodo, Sam, and Gollum making their way ever closer to Mordor. Mixed in with the Aragorn/Legolas/Gimli story is also the adventures of Merry and Pippin in Fangorn Forest with the Ent Treebeard.