I thought it was an interesting scene in Book 11 where Paris hits Diomedes in the foot with an arrow. "Now Diomedes was stripping the corselet of strong Agastrophos from about his chest, and the shining shield from his shoulders and the heavy helm, as the other pulled his bow at the handgrip and shot, and the arrow escaping his hand flew not vain but struck the flat of the right foot, and the shaft driven clean through stuck in the ground" (11.373-378).
I find this scene interesting because it foreshadows the event that occurs between Paris and Achilles later on in the story. Although it might not be in the book, in the movie, it's Paris who shoots Achilles in the foot/Achilles tendon.